Mathematical fundamentals of Metamaterials for multiscale Physics and Mechanics
Lead Research Organisation:
Imperial College London
Department Name: Mathematics
Abstract
Metamaterials are materials that are man-made and can have properties that no natural material could have, for instance light entering a metamaterial slab can be bent in the opposite manner to that which one would usually expect. This is not merely a scientific curiosity, it can have profound implications leading to sub-wavelength imaging, focusing, invisibility cloaks amongst other effects and this, in turn, can lead to materials with unexpected and novel properties. Much of the interest in metamaterials has thus far been in optics and electromagnetism, but it is clear that the underlying ideas should be applicable in other contexts such as elasticity, diffusion, structured materials, acoustics and even water waves. There is an abundance of important applications: designing thermal cloaks for keeping sensitive electronics cool, creating acoustic metamaterials for underwater stealth, wave by-pass systems for structural protection of buildings or key components, all of which are outside the optical context of metamaterials as they currently exist.
A key issue in creating a metamaterial is its design, normally as a periodic medium with a precise micro-structured geometry, and the frequency at which it operates.
As Metamaterials are beginning to achieve a certain maturity in optics the time is ripe to move this knowledge coherently into other fields, it is also timely to enrich Mathematics with the exciting conceptual problems created in Metamaterials and enrich the Metamaterials toolkit with sophisticated Mathematical techniques. This proposal aims to use the transformative tools and unifying ideas of Mathematics to move the physics of Metamaterials into research areas such as Elasticity, Acoustics, Structural Mechanics and Diffusion where Metamaterials have barely been investigated, but where there will undoubtedly be impact and applications. By working closely with Physicists it will enrich and empower the existing Metamaterials community by bringing sophisticated numerical and theoretical methods to the fore.
A key issue in creating a metamaterial is its design, normally as a periodic medium with a precise micro-structured geometry, and the frequency at which it operates.
As Metamaterials are beginning to achieve a certain maturity in optics the time is ripe to move this knowledge coherently into other fields, it is also timely to enrich Mathematics with the exciting conceptual problems created in Metamaterials and enrich the Metamaterials toolkit with sophisticated Mathematical techniques. This proposal aims to use the transformative tools and unifying ideas of Mathematics to move the physics of Metamaterials into research areas such as Elasticity, Acoustics, Structural Mechanics and Diffusion where Metamaterials have barely been investigated, but where there will undoubtedly be impact and applications. By working closely with Physicists it will enrich and empower the existing Metamaterials community by bringing sophisticated numerical and theoretical methods to the fore.
Planned Impact
The potential impact of Metamaterials outside Optics is very broad, for instance in cloaking buildings from ground vibration: Menard (a French Civil Engineering company) is constructing trial sites using ideas (based upon work by our visiting Fellow, Guenneau, that draws upon his joint work with two of the proposers) and this UK Mathematics-led science is currently leading to French Engineering impact. All three groupings have a strong track-record of impact. As an exemplar: Craster has had a decade-long collaboration with the RCNDE at Imperial which has led to algorithms being incorporated into DISPERSE (the world's-leading software modelling tool for guided stress waves, licensed by Imperial Consultants) and by Rolls-Royce amongst others and a similar relationship with MoD DSTL.
Our approach to impact will be pro-active: We have deliberately incorporated an industry transfer Fellow into our research team, Professor Ian Jones from Liverpool John Moores University; he is the Director of the Mechanical Engineering and Materials Research Centre and brings invaluable modelling experience from his time in industry with links that he has maintained in academia through contract research and consultancy assignments with UKAEA, AEA Technology, Serco Assurance and AMEC. We will develop these existing strategic partnerships in NDE, using the links of Jones, with the nuclear industry (Rolls Royce and AMEC) where elastic multi-scale media is a key issue. Other members of the research team have contacts with MoD DSTL, BAE Systems, Rolls-Royce and utilising the well established Imperial College Industry Clubs, focused industry workshops will be run. A dedicated website will be created and we will actively engage in EngD and CASE doctorate programmes. Importantly both BAE Systems and MoD DSTL have expressed strong interest in playing an active role in this grant by sitting on the advisory board; MoD DSTL have offered additional support through a funded PhD studentship.
Additionally, research findings will be disseminated widely through journal publications, national and international conference talks, a dedicated website, public engagements and through the focused workshops that we propose to run. The development of strategic international partnerships is also a key element of our approach to impact, we will develop and leverage the existing strong links with the CNRS and CUDOS by funded joint Phd positions (using Phd students leveraged from our institutions) and through visitor exchanges. We will be active in public engagement and outreach activities, the subject of Metamaterials is fascinating and appealing outside academia, and a program of external public lectures, school visits etc will be incorporated into the work programme.
Our approach to impact will be pro-active: We have deliberately incorporated an industry transfer Fellow into our research team, Professor Ian Jones from Liverpool John Moores University; he is the Director of the Mechanical Engineering and Materials Research Centre and brings invaluable modelling experience from his time in industry with links that he has maintained in academia through contract research and consultancy assignments with UKAEA, AEA Technology, Serco Assurance and AMEC. We will develop these existing strategic partnerships in NDE, using the links of Jones, with the nuclear industry (Rolls Royce and AMEC) where elastic multi-scale media is a key issue. Other members of the research team have contacts with MoD DSTL, BAE Systems, Rolls-Royce and utilising the well established Imperial College Industry Clubs, focused industry workshops will be run. A dedicated website will be created and we will actively engage in EngD and CASE doctorate programmes. Importantly both BAE Systems and MoD DSTL have expressed strong interest in playing an active role in this grant by sitting on the advisory board; MoD DSTL have offered additional support through a funded PhD studentship.
Additionally, research findings will be disseminated widely through journal publications, national and international conference talks, a dedicated website, public engagements and through the focused workshops that we propose to run. The development of strategic international partnerships is also a key element of our approach to impact, we will develop and leverage the existing strong links with the CNRS and CUDOS by funded joint Phd positions (using Phd students leveraged from our institutions) and through visitor exchanges. We will be active in public engagement and outreach activities, the subject of Metamaterials is fascinating and appealing outside academia, and a program of external public lectures, school visits etc will be incorporated into the work programme.
Organisations
- Imperial College London (Lead Research Organisation)
- University of Sheffield (Collaboration)
- Qinetiq (United Kingdom) (Collaboration)
- Liverpool John Moores University (Collaboration)
- University of Trento (Collaboration)
- MINISTRY OF DEFENCE (Project Partner)
- BAE Systems (United Kingdom) (Project Partner)
Publications
Carta G
(2017)
"Deflecting elastic prism" and unidirectional localisation for waves in chiral elastic systems.
in Scientific reports
McPhedran RC
(2015)
'Parabolic' trapped modes and steered Dirac cones in platonic crystals.
in Proceedings. Mathematical, physical, and engineering sciences
Carrillo J
(2020)
A ?-convexity based proof for the propagation of chaos for weakly interacting stochastic particles
in Journal of Functional Analysis
Thompson I
(2018)
A Direct Method for Bloch Wave Excitation by Scattering at the Edge of a Lattice. Part I: Point Scatterer Problem
in The Quarterly Journal of Mechanics and Applied Mathematics
Brougham R
(2019)
A direct method for Bloch wave excitation by scattering at the edge of a lattice. Part II: Finite size effects
in The Quarterly Journal of Mechanics and Applied Mathematics
Pusch A
(2015)
A highly efficient CMOS nanoplasmonic crystal enhanced slow-wave thermal emitter improves infrared gas-sensing devices.
in Scientific reports
Duncan A
(2015)
A Multiscale Analysis of Diffusions on Rapidly Varying Surfaces
in Journal of Nonlinear Science
Kalliadasis S
(2015)
A new framework for extracting coarse-grained models from time series with multiscale structure
in Journal of Computational Physics
Schmuck M
(2013)
A new mode reduction strategy for the generalized Kuramoto-Sivashinsky equation
in IMA Journal of Applied Mathematics
Brougham R
(2015)
A note on quasiperiodic Green's functions for arrays
in Journal of Engineering Mathematics
Title | Finite Element Computation for the Mode Four Displacement Field from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the displacement field corresponding to the fourth mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Four_Displacement_Field_fro... |
Title | Finite Element Computation for the Mode Four Displacement Field from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the displacement field corresponding to the fourth mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Four_Displacement_Field_fro... |
Title | Finite Element Computation for the Mode Four Vertical Displacement from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the vertical displacement corresponding to the fourth mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Four_Vertical_Displacement_... |
Title | Finite Element Computation for the Mode Four Vertical Displacement from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the vertical displacement corresponding to the fourth mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Four_Vertical_Displacement_... |
Title | Finite Element Computation for the Mode Three Displacement Field from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the displacement field corresponding to the third mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Three_Displacement_Field_fr... |
Title | Finite Element Computation for the Mode Three Displacement Field from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the displacement field corresponding to the third mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Three_Displacement_Field_fr... |
Title | Finite Element Computation for the Mode Three Vertical Displacement from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the vertical displacement corresponding to the third mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Three_Vertical_Displacement... |
Title | Finite Element Computation for the Mode Three Vertical Displacement from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the vertical displacement corresponding to the third mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Three_Vertical_Displacement... |
Title | Finite Element Computation for the Mode Two Displacement Field from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the displacement field corresponding to the second mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Two_Displacement_Field_from... |
Title | Finite Element Computation for the Mode Two Displacement Field from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the displacement field corresponding to the second mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Two_Displacement_Field_from... |
Title | Finite Element Computation for the Mode Two Vertical Displacement from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the vertical displacement corresponding to the second mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Two_Vertical_Displacement_f... |
Title | Finite Element Computation for the Mode Two Vertical Displacement from An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces |
Description | A finite element computation for the vertical displacement corresponding to the second mode of the dispersion curve of the surface waves, as shown in Figure 5. |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Finite_Element_Computation_for_the_Mode_Two_Vertical_Displacement_f... |
Title | Video 1 from Interfacial waveforms in chiral lattices with gyroscopic spinners |
Description | Wave propagation at a frequency just below the highest finite stop band in Fig. 2f |
Type Of Art | Film/Video/Animation |
Year Produced | 2018 |
URL | https://rs.figshare.com/articles/Video_1_from_Interfacial_waveforms_in_chiral_lattices_with_gyroscop... |
Title | Video 1 from Interfacial waveforms in chiral lattices with gyroscopic spinners |
Description | Wave propagation at a frequency just below the highest finite stop band in Fig. 2f |
Type Of Art | Film/Video/Animation |
Year Produced | 2018 |
URL | https://rs.figshare.com/articles/Video_1_from_Interfacial_waveforms_in_chiral_lattices_with_gyroscop... |
Title | Video 1: Motion of a gyrobeam from Gyro-elastic beams for the vibration reduction of long flexural systems |
Description | Time-harmonic motion of a gyrobeam under a harmonic force, calculated at the frequencies indicated in Fig. 1 |
Type Of Art | Film/Video/Animation |
Year Produced | 2017 |
URL | https://rs.figshare.com/articles/media/Video_1_Motion_of_a_gyrobeam_from_Gyro-elastic_beams_for_the_... |
Title | Video 1: Motion of a gyrobeam from Gyro-elastic beams for the vibration reduction of long flexural systems |
Description | Time-harmonic motion of a gyrobeam under a harmonic force, calculated at the frequencies indicated in Fig. 1 |
Type Of Art | Film/Video/Animation |
Year Produced | 2017 |
URL | https://rs.figshare.com/articles/media/Video_1_Motion_of_a_gyrobeam_from_Gyro-elastic_beams_for_the_... |
Title | Video 1a from Flexural vibration systems with gyroscopic spinners |
Description | 1st eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1a_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1a from Flexural vibration systems with gyroscopic spinners |
Description | 1st eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1a_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1b from Flexural vibration systems with gyroscopic spinners |
Description | 2nd eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1b_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1b from Flexural vibration systems with gyroscopic spinners |
Description | 2nd eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1b_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1c from Flexural vibration systems with gyroscopic spinners |
Description | 3rd eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1c_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1c from Flexural vibration systems with gyroscopic spinners |
Description | 3rd eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1c_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1d from Flexural vibration systems with gyroscopic spinners |
Description | 4th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1d_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1d from Flexural vibration systems with gyroscopic spinners |
Description | 4th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1d_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1e from Flexural vibration systems with gyroscopic spinners |
Description | 5th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1e_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1e from Flexural vibration systems with gyroscopic spinners |
Description | 5th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1e_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1f from Flexural vibration systems with gyroscopic spinners |
Description | 6th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1f_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1f from Flexural vibration systems with gyroscopic spinners |
Description | 6th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
Impact | None |
URL | https://rs.figshare.com/articles/Video_1f_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1g from Flexural vibration systems with gyroscopic spinners |
Description | 7th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1g_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1g from Flexural vibration systems with gyroscopic spinners |
Description | 7th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1g_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1h from Flexural vibration systems with gyroscopic spinners |
Description | 8th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1h_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1h from Flexural vibration systems with gyroscopic spinners |
Description | 8th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1h_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1i from Flexural vibration systems with gyroscopic spinners |
Description | 9th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1i_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1i from Flexural vibration systems with gyroscopic spinners |
Description | 9th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1i_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1j from Flexural vibration systems with gyroscopic spinners |
Description | 10th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1j_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1j from Flexural vibration systems with gyroscopic spinners |
Description | 10th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1j_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1k from Flexural vibration systems with gyroscopic spinners |
Description | 11th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1k_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 1k from Flexural vibration systems with gyroscopic spinners |
Description | 11th eigenmode of the finite gyroscopic structure |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_1k_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 2 from Interfacial waveforms in chiral lattices with gyroscopic spinners |
Description | Wave propagation at a frequency just above the highest finite stop band in Fig. 2f |
Type Of Art | Film/Video/Animation |
Year Produced | 2018 |
URL | https://rs.figshare.com/articles/Video_2_from_Interfacial_waveforms_in_chiral_lattices_with_gyroscop... |
Title | Video 2 from Interfacial waveforms in chiral lattices with gyroscopic spinners |
Description | Wave propagation at a frequency just above the highest finite stop band in Fig. 2f |
Type Of Art | Film/Video/Animation |
Year Produced | 2018 |
URL | https://rs.figshare.com/articles/Video_2_from_Interfacial_waveforms_in_chiral_lattices_with_gyroscop... |
Title | Video 2: Motion of a frame incorporating a gyrobeam from Gyro-elastic beams for the vibration reduction of long flexural systems |
Description | Time-harmonic motion of the frame including a gyrobeam shown in Fig. 2, subjected to a harmonic force with a radian frequency of 314.8 rad/s |
Type Of Art | Film/Video/Animation |
Year Produced | 2017 |
URL | https://rs.figshare.com/articles/media/Video_2_Motion_of_a_frame_incorporating_a_gyrobeam_from_Gyro-... |
Title | Video 2: Motion of a frame incorporating a gyrobeam from Gyro-elastic beams for the vibration reduction of long flexural systems |
Description | Time-harmonic motion of the frame including a gyrobeam shown in Fig. 2, subjected to a harmonic force with a radian frequency of 314.8 rad/s |
Type Of Art | Film/Video/Animation |
Year Produced | 2017 |
URL | https://rs.figshare.com/articles/media/Video_2_Motion_of_a_frame_incorporating_a_gyrobeam_from_Gyro-... |
Title | Video 3a from Flexural vibration systems with gyroscopic spinners |
Description | 1st eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3a_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 3a from Flexural vibration systems with gyroscopic spinners |
Description | 1st eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3a_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 3b from Flexural vibration systems with gyroscopic spinners |
Description | 2nd eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3b_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 3b from Flexural vibration systems with gyroscopic spinners |
Description | 2nd eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3b_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 3c from Flexural vibration systems with gyroscopic spinners |
Description | 3rd eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3c_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 3c from Flexural vibration systems with gyroscopic spinners |
Description | 3rd eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3c_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 3d from Flexural vibration systems with gyroscopic spinners |
Description | 4th eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3d_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Title | Video 3d from Flexural vibration systems with gyroscopic spinners |
Description | 4th eigenfunction of the periodic gyroscopic structure for a given wave number |
Type Of Art | Film/Video/Animation |
Year Produced | 2019 |
URL | https://rs.figshare.com/articles/Video_3d_from_Flexural_vibration_systems_with_gyroscopic_spinners/8... |
Description | 1) We designed, and with collaborators built, metamaterial devices to redirect vibration and elastic waves around or beneath surface structures. In layman's terms these can be seismic devices to redirect ground vibration and has resulted in a patent. This discovery has also led to considerable follow-on EU grant funding for metamaterial devices for energy harvesting leading to a further patent. 2) A major and significant contribution to the advancement of metamaterials has been the development of a theoretical and computational framework for atomistic active hyperbolic metamaterials based on graphene and/or hexagonal boron nitride. We identified the possibility of realising gain in graphene based hyperbolic metamaterials. Moreover, we analysed active gain-enhanced hyperbolic metamaterials and discovered that in the strong coupling regime both emission and absorption lines may cause a distortion of the plasmonic modes due to Rabi splitting and a PT-symmetry broken phase, with generation of exceptional points at loss-gain compensation frequencies. 3) We made major contributions to space-time-dependent electromagnetic media, whose constitutive parameters are directionally biased in space and time: a topic of enormous interest across physics. We discovered that, surprisingly, the Fresnel drag effect of light in moving media, dictated by special relativity, is also present in modulated media, fully resolving this paradox with an analytical approach. This has contributed to the emergence of a new subfield of wave physics: time modulated metamaterials. 4) We made major contributions to the use of metasurfaces in holography and data storage, specifically via a scheme for encoding holographic videos without the need of lenses for display. (5) We have developed a class of models for elastic metamaterials, characterised by negative inertia. In particular, this was applied for flexural structured plates containing periodic clusters of non-standard resonators. The model of "logarithmic junction" has been successfully developed and implemented to control waves in multi-scale flexural structures containing flexural plates connected to thin flexural beams. (6) Gyroscopic chirality has been introduced into multi-scale elastic systems to control the wave localisation and dynamic anisotropy, as well as formation of interfacial elastic waveforms, known as "topologically protected states". (7) Applications have been developed for novel metamaterial systems to be used in the design of vascular stents, which take into account transitional regimes in vascular networks. |
Exploitation Route | The seismic/vibration work has already been implemented by a geophysics group in France for the METAFORET project, and by a group in Nottingham experimentally and now sees wide application in vibration control including for devices for energy harvesting, surface acoustic wave filters and photonic/ phononic crystal devices. There are also applications in the defence sector to redirect or manipulate underwater sound and to stealth acoustic coatings, this has dual use in terms of lightweight soundproofing. Time modulated metamaterial devices demonstrate non-reciprocal wave motion, which adds another degree of freedom and versatility, and these devices could impact upon current capabilities in telecommunications. Some of the work undertaken in the grant formed the basis of REF Impact cases at Imperial College; these are around the impact of metamaterials commercially, crack detection and ultrasonics. |
Sectors | Aerospace Defence and Marine Manufacturing including Industrial Biotechology |
URL | http://www.imperial.ac.uk/plasmonics-metamaterials/research/ |
Description | Metamaterials and metasurfaces are permeating into industrial applications and further from low TRL work into devices. Our work has led, together of course with work from others, to the KTN setting up a Metamaterials special interest group. Industry interest is growing, our research has, for instance, led to the initiation of seismic materials as a sub-field and there is much activity going in in that field. Similarly active metamaterials using gain have seen advancement as a result of our work. The field of energy harvesting has adopted metamaterial concepts and there are now (2020) proof-of-concept devices and follow-on funding at higher TRL from the European Commission. Update in 2023 there is an EU grant, under Horizon, Metaveh on energy harvesting with metamaterials and this came out of the research within this grant; Metaveh has just had a patent come out of it and that would not have been possible without the fundamental research from this grant. The impact of our work here, and that connected with it, will, in all likelihood, form two REF impact cases in REF 2021. Update in 2023 - this did indeed happen. There was a REF impact case from Imperial in the Physics submission around metamaterials, and a separate one in Mathematics also with metamaterials involved. Both benefited strongly from the work enabled by this proposal. Two patent applications. One granted and the other submitted. |
First Year Of Impact | 2020 |
Sector | Aerospace, Defence and Marine,Manufacturing, including Industrial Biotechology |
Impact Types | Economic |
Description | (BOHEME) - Bio-Inspired Hierarchical MetaMaterials |
Amount | € 3,226,250 (EUR) |
Funding ID | 863179 |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 01/2020 |
End | 12/2023 |
Description | (HOTSPOT) - Accessing hot-spots in plasmonic nanoantennas |
Amount | € 183,454 (EUR) |
Funding ID | 657599 |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 04/2015 |
End | 04/2017 |
Description | (MetaVEH) - Metamaterial Enabled Vibration Energy Harvesting |
Amount | € 4,018,875 (EUR) |
Funding ID | 952039 |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 01/2021 |
End | 12/2024 |
Description | (PhononGap) - Heat transfer and friction between two closely spaced objects due to phonon transfer across a vacuum gap |
Amount | € 183,454 (EUR) |
Funding ID | 702525 |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 03/2016 |
End | 03/2018 |
Description | (Topological-Plasmonics) - Robust light manipulation in plasmonic nanostructures assisted by topological protection |
Amount | € 183,454 (EUR) |
Funding ID | 700745 |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 04/2016 |
End | 09/2018 |
Description | Biological metamaterials for enhanced noise control technology |
Amount | £1,271,342 (GBP) |
Funding ID | EP/T002654/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2019 |
End | 03/2022 |
Description | Daniel Colquitt: Multiscale multiphysics structured interfaces |
Amount | £228,000 (GBP) |
Funding ID | RPG-2022-261 |
Organisation | The Leverhulme Trust |
Sector | Charity/Non Profit |
Country | United Kingdom |
Start | 12/2022 |
Description | Dynamo: Dynamic Spatio-Temporal Modulation of Light by Phononic Architectures |
Amount | £236,690 (GBP) |
Funding ID | 1033143 |
Organisation | Innovate UK |
Sector | Public |
Country | United Kingdom |
Start | 03/2022 |
End | 02/2026 |
Description | EPSRC Centre for New Mathematical Sciences Capabilities in Healthcare Technologies, EP/N014499/1 |
Amount | £2,005,000 (GBP) |
Funding ID | EP/N014499/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 12/2015 |
End | 11/2019 |
Description | EPSRC UK Acoustics Network Plus |
Amount | £1,418,895 (GBP) |
Funding ID | EP/V007866/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2021 |
End | 03/2025 |
Description | EU Marie-Curie Fellowship for Andrea Colombi |
Amount | € 184,000 (EUR) |
Funding ID | 653285 |
Organisation | European Commission |
Sector | Public |
Country | European Union (EU) |
Start | 09/2015 |
End | 10/2017 |
Description | French National Research Agency Projet ANR |
Amount | € 300,000 (EUR) |
Organisation | National Agency for Research |
Sector | Public |
Country | France |
Start | 09/2016 |
End | 10/2019 |
Description | Gordon and Betty Moore Foundation Grant |
Amount | $525,000 (USD) |
Organisation | Gordon and Betty Moore Foundation |
Sector | Charity/Non Profit |
Country | United States |
Start | 04/2017 |
End | 07/2021 |
Description | Industry Funding |
Amount | £49,000 (GBP) |
Organisation | Multiwave AG |
Sector | Private |
Country | Switzerland |
Start | 03/2017 |
End | 03/2019 |
Description | International Centre for Mathematical Sciences (ICMS) Workshop Grant |
Amount | £21,500 (GBP) |
Organisation | International Centre for Mathematical Sciences (ICMS) |
Sector | Academic/University |
Country | United Kingdom |
Start | 07/2016 |
End | 08/2016 |
Description | Leverhulme Trust Research Fellowship |
Amount | £45,000 (GBP) |
Organisation | The Leverhulme Trust |
Sector | Charity/Non Profit |
Country | United Kingdom |
Start | 09/2017 |
End | 09/2019 |
Description | Leverhulme Trust Research Grant |
Amount | £270,000 (GBP) |
Organisation | The Leverhulme Trust |
Sector | Charity/Non Profit |
Country | United Kingdom |
Start | 05/2017 |
End | 05/2020 |
Description | Marie Curie Fellowship |
Amount | € 185,000 (EUR) |
Funding ID | EU project 798475 - METAQUAKENG |
Organisation | European Union |
Sector | Public |
Country | European Union (EU) |
Start | 08/2018 |
End | 09/2021 |
Description | Mathematical Analysis of Multi-dimensional Topological Edge Modes |
Amount | £190,380 (GBP) |
Funding ID | EP/X027422/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 11/2022 |
End | 11/2024 |
Description | Next generation metamaterials: exploiting four dimensions |
Amount | £7,731,660 (GBP) |
Funding ID | EP/Y015673/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2024 |
End | 02/2029 |
Description | Stochastic ultrasonic scattering from the tips of rough cracks |
Amount | £415,000 (GBP) |
Funding ID | EP/P01951X/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2017 |
End | 03/2020 |
Description | Task 30 |
Amount | £200,000 (GBP) |
Organisation | Atlas Elektronik UK |
Sector | Private |
Country | Germany |
Start | 01/2021 |
End | 03/2022 |
Description | UK Acoustics Network |
Amount | £561,000 (GBP) |
Funding ID | EP/R005001/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 11/2017 |
End | 11/2020 |
Title | Dataset for 'Cascaded Nano-Optics to Probe Microsecond Atomic Scale Phenomena' |
Description | This dataset contains the source data underlying Figures 1-4 in the manuscript. Most data SERS spectra obtained from experiments, DFT calculations and simulations. An instruction file for plotting each figure is provided. |
Type Of Material | Database/Collection of data |
Year Produced | 2020 |
Provided To Others? | Yes |
URL | https://www.repository.cam.ac.uk/handle/1810/305819 |
Title | Video 1 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_1_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 1 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_1_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 2 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_2_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 2 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_2_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 3 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_3_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 3 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_3_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 4 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_4_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 4 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_4_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 5 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_5_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Title | Video 5 from Wave polarization and dynamic degeneracy in a chiral elastic lattice |
Description | This paper addresses fundamental questions arising in the theory of Bloch-Floquet waves in chiral elastic lattice systems. This area has received a significant attention in the context of 'topologically protected' waveforms. Although practical applications of chiral elastic lattices are widely appreciated, especially in problems of controlling low-frequency vibrations, wave polarization and filtering, the fundamental questions of the relationship of these lattices to classical waveforms associated with longitudinal and shear waves retain a substantial scope for further development. The notion of chirality is introduced into the systematic analysis of dispersive elastic waves in a doubly-periodic lattice. Important quantitative characteristics of the dynamic response of the lattice, such as lattice flux and lattice circulation, are used in the analysis along with the novel concept of 'vortex waveforms' that characterize the dynamic response of the chiral system. We note that the continuum concepts of pressure and shear waves do not apply for waves in a lattice, especially in the case when the wavelength is comparable with the size of the elementary cell of the periodic structure. Special critical regimes are highlighted when vortex waveforms become dominant. Analytical findings are accompanied by illustrative numerical simulations. |
Type Of Material | Database/Collection of data |
Year Produced | 2019 |
Provided To Others? | Yes |
URL | https://rs.figshare.com/articles/Video_5_from_Wave_polarization_and_dynamic_degeneracy_in_a_chiral_e... |
Description | Collaboration with Engineering Department of Liverpool John Moores University |
Organisation | Liverpool John Moores University |
Department | Astrophysics Research Institute |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | The work involved a highly productive collaboration with Professor I.S. Jones of Liverpool John Moores University on problems of failure propagation in micro-structured materials, with applications in the design and analysis of new types of metamaterials. |
Collaborator Contribution | Research collaboration, joint publications. |
Impact | publications are included in the portfolio |
Description | Collaboration with University of Trento, Dept of Structural Mechanics, on modelling and prototyping of elastic cloaks for structured plates |
Organisation | University of Trento |
Country | Italy |
Sector | Academic/University |
PI Contribution | Liverpool team has provided the theoretical concept and practical design for a structured cloak. Further tuning and analysis were used on the prototype. Additional work was carried out on the recent idea generated by the Trento group on modified boundary conditions in the dynamic regime. |
Collaborator Contribution | Trento group including Prof D. Bigoni and Dr D. Misseroni has made an elastic cloak for a structured plate, according to the theoretical design proposed by Liverpool. Furthermore, they have proposed a new idea of using non-homogenous boundary conditions specially tuned to the dynamic regime, and this was also implemeted at the level of a full scale experiment and a prototype. |
Impact | Omnidirectional flexural invisibility of multiple interacting voids in vibrating elastic plates, D Misseroni, AB Movchan, D Bigoni - Proceedings of the Royal Society A, 2019, 475, Issue 2229, pp. 20190283 |
Start Year | 2015 |
Description | QinetiQ Ring resonator |
Organisation | Qinetiq |
Department | QinetiQ (Farnborough) |
Country | United Kingdom |
Sector | Private |
PI Contribution | This is funding for an iCASE student |
Collaborator Contribution | Advice / input into the supervision |
Impact | None yet |
Start Year | 2019 |
Description | UK Acoustics Network Plus and Network |
Organisation | University of Sheffield |
Department | Department of Mechanical Engineering |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | Craster is co-director of the UK Acoustics Network Plus EP/V007866/1 and the Network EP/R005001/1 Members of the team & the postdocs and fellows that came to the research groups during the programme grant have played a strong role in the success of the Network Plus and Network. |
Collaborator Contribution | The critical mass of the programme grant and the research done within it gave momentum to the Network. The UK Acoustics Network (of which Craster was co-director) ran from 2017-2021 and interacted strongly with the programme grant. The special interest group in acoustic metamaterials was led by Craster until 2022 and this acted to motivate the UK Metamaterials Network. |
Impact | There is a separate ResearchFish entry for the UK Acoustics Network and Network Plus. www.acoustics.ac.uk Currently (as of 2024) there are over 1700 members, half are from industry and half from academia. It has run several hundred events nationwide, summer schools and a pilot funding scheme. There are a vast number of partners and please look at the UKAN and UKAN+ researchfish entries for details. |
Start Year | 2017 |
Title | ???? |
Description | ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? |
IP Reference | JP2020509259 |
Protection | Patent granted |
Year Protection Granted | 2020 |
Licensed | Commercial In Confidence |
Impact | This is leading to further patents |
Title | NANO-SIZED DRUG DELIVERY STRUCTURE |
Description | A metamaterial inspired cloak for diffusion |
IP Reference | EP3448406 |
Protection | Patent granted |
Year Protection Granted | 2019 |
Licensed | No |
Impact | Collaboration & ongoing research /efforts with experiments. |
Title | SEISMIC DEFENCE STRUCTURES |
Description | A seismic wave shield for protecting an area from seismic vibrations and a method of shielding an area from seismic waves by installing a seismic wave shield. The seismic wave shield comprises a set of columns (1) embedded in regolith (3) and in contact with bedrock (4). There is a material contrast between a material forming the columns (1) and the regolith (3). |
IP Reference | WO2018073412 |
Protection | Patent / Patent application |
Year Protection Granted | 2018 |
Licensed | Commercial In Confidence |
Impact | This patent was formally granted in 2023 in the US, having previously been granted in Japan 2022 and Europe 2023. |
Company Name | MULTIWAVE TECHNOLOGIES SAS |
Description | Multiwave was co-founded by a PhD student from the research group at Imperial College and uses metamaterials in the medical technology area. It is primarily based in Geneva in Switzerland. |
Year Established | 2020 |
Impact | The company has developed a portable MRI scanner which is currently sold to research hospitals. |
Website | https://multiwave.ch/ |
Description | European Acoustic and Mechanical Metamaterials meeting |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | A largescale workshop jointly organised with the French CNRS on metamaterials. Industry, ONR, DARPA and many others present and in the end had 120+ participants. |
Year(s) Of Engagement Activity | 2018 |
URL | https://www.imperial.ac.uk/plasmonics-metamaterials/european-workshop/ |
Description | IMA/QJMAM Summer School on Asymptotics of PDEs and Modelling of Waves |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | This was International Summer School aimed at a wide range audience interested in partial differential equations, their applications and in particular lectures were delivered on Mathematical modelling of metamaterials structures and vascular systems networks and their dynamic response. |
Year(s) Of Engagement Activity | 2021 |
URL | https://www.eventbrite.co.uk/e/qjmamima-summer-school-on-asymptotics-of-pdes-and-modelling-of-waves-... |
Description | Imperial Waves Day 2017 |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Study participants or study members |
Results and Impact | An event for industry and Imperial College, mainly, but it also involved external partners and speakers |
Year(s) Of Engagement Activity | 2017 |
Description | Industrial engagement (MAKUNET) event at Aalborg (Denmark) on Waves in elastic multi-scale systems: chirality, wave trapping and dynamic anisotropy |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Industry/Business |
Results and Impact | This was a productive industrial engagement event in the framework of the international MAKUNET network, in the form of a workshop and research discussions with designers of wind turbines. The date was 16 January 2019. Off-shore wind farms include periodic clusters of wind turbines, with each turbine producing a gyroscopic action leading to vibrations. The combined effect is important and has never been addressed. Industry is very interested to reduce the environmental impact produced by large clusters of wind turbines. The event was attended by around 40 participants. |
Year(s) Of Engagement Activity | 2019 |
URL | https://www.vibroacoustics.m-tech.aau.dk/makunet/seminars/ |
Description | Industrial meeting with BAE team (Warton) in February 2018. The meeting was organised and held in Liverpool and attended by BAE staff and researchers from the University of Liverpool |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Industry/Business |
Results and Impact | Techincal meeting between Applied Maths at Liverpool and industrial colleagues at BAE Warton was held in Liverpool in February 2018. It was based on the research of metamaterials modelling and a range of industrial applications. |
Year(s) Of Engagement Activity | 2018 |
Description | International school on light sciences and technologies (John Pendry) |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | This school is envisioned to be a worldwide top International forum (every fourth week of June) on Light Sciences and Technologies in the framework of a "special top university" that is recognized as the "university of universities" and in a privileged environment "the Royal Magdalena Palace" in Santander, Cantabria, Spain. Each edition of this international school will have an intensification or main core in a specific application area and additional current hot topics. |
Year(s) Of Engagement Activity | 2018 |
URL | http://www.teisa.unican.es/ISLiST/ |
Description | KTN/ Innovate UK /BIS meeting on Metamaterials |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Industry/Business |
Results and Impact | KTN/ Innovate UK /BIS meeting on Metamaterials with representatives from Southampton, Exeter, Queen Mary, Thales, BAE, QinetiQ, DSTL |
Year(s) Of Engagement Activity | 2016 |
Description | Liverpool Mathematical Society public lecture for School students and general public in Liverpool and Merseyside area, 18 April 2018 |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Regional |
Primary Audience | Schools |
Results and Impact | This was a Liverpool Mathematical Society public lecture for Schools on the topic of ``Wave Cloaking and the Millennium Bridge Problem''. It was also attended by members of the general public, with more than 50 people attending. The lecture generated a lot of interest in the area of wave modelling and in particular suppression of vibrations elongated elastic systems such as the Millennium Bridge. |
Year(s) Of Engagement Activity | 2018 |
Description | Metamaterials European School - Marseille |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Postgraduate students |
Results and Impact | The event on ``Chiral elastic metamaterials and directional localisation'' was delivered at the Metamaterials European School - Modelling of metamaterials: numerical methods and homogenization techniques held in Marseille, 1-2 September 2017 |
Year(s) Of Engagement Activity | 2017 |
URL | http://congress2017.metamorphose-vi.org/files/Doctoral_School_final.pdf |
Description | Organised a RESEARCH DAY ON MODELLING OF METAMATERIALS AND WAVES IN MULTISCALE SYSTEMS - Liverpool, with the keynote lecture by Prof G.W. Milton and a series of presentations from postgraduate students and researchers at Liverpool University and Imperial College London |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Postgraduate students |
Results and Impact | The event on the 2nd March 2015 in Liverpool was an exciting engagement activity on modelling of metamaterials which featured a series of interdisciplinary modelling presentations, with the keynote lecture of Prof G.W. Milton |
Year(s) Of Engagement Activity | 2015 |
URL | http://fp7.imaps.aber.ac.uk/parm_data/modelling_of_metamaterials.pdf |
Description | Paint Branch Distinguished Lecture (John Pendry) university of Maryland |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Professional Practitioners |
Results and Impact | The Paint Branch Distinguished Lecture in Applied Physics was established and endowed by a generous gift to the Institute for Research in Electronics and Applied Physics in 2014 with the intention to bring luminaries in the field of Applied Physics to speak to our community. It is our hope that this lecture will significantly raise the visibility of Applied Physics on our campus and beyond, and will grow to be an annual tradition that is anticipated, celebrated and widely attended. About The Name Paint Branch is a 14-mile stream that brings water from small streams and tributaries throughout the region, flowing south through our campus on its way to the Anacostia River. Many of us pass it, by car, bicycle, or on foot each day on our way to and from work. Like the Paint Branch, we anticipate that this new lectureship will serve as a confluence that draws together the many talented and active researchers, faculty and students in Applied Physics in our community, and will remind us of our common goals and principles. Each year, we will identify and invite a distinguished scientist to visit our campus and address our faculty, students and colleagues. |
Year(s) Of Engagement Activity | 2018 |
URL | https://ireap.umd.edu/paintbranch |
Description | Presentation on waves in semi-infinite structures at the Isaac Newton Inst programme on Wiener-Hopf Equations and their Applications, August 2019 |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Postgraduate students |
Results and Impact | A talk outlining the methods and recent results was presented at the Isaac Newton Institute on modelling of waves in semi-infinite elastic systems. This was closely linked to the Wiener-Hopf functional equations and their applications. The audience included nearly 100 participants rangging from academics to postgraduate and undergraduate students as well as industrial researchers from different countries as well as UK institutions. |
Year(s) Of Engagement Activity | 2019 |
Description | Public lecture, Cambridge society for the aplication of research by Sir John Pendry |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Public/other audiences |
Results and Impact | Public lecture |
Year(s) Of Engagement Activity | 2018 |
Description | Quantum Plasmonics meeting |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Study participants or study members |
Results and Impact | EVENTS Workshop Wednesday 24th - Friday 26th August, 2016 Quantum Plasmonics Workshop Venue: Lecture Room G20, Royal School of Mines, Imperial College London Contact: Ms Hafiza Bibi Tel: 020 759 47252 Email: tyc-administrator@imperial.ac.uk The main goal of QUPLA is to initiate a discussion and an exchange of ideas between researchers who model plasmonic systems, but work in different subfields of nanophysics. Specifically, the workshop will focus on light-matter interactions involving small metal nanoparticles and regimes when quantum effects are relevant and give rise to novel phenomena with potential for technological applications and advances in basic science. QUPLA will bring together scientists from the following exciting fields: plasmonics, many-body physics, electronic structure theory, quantum optics, and nonlinear optics. We will discuss the latest progress, shape future directions and facilitate the formation of a community driven by the shared interests. The duration of the workshop will be three days. On each day, we will have a number of talks given by leading theorists and experimentalists that will highlights capabilities and achievements as well as shortcomings and challenges of current state-of-the-art approaches. After these talks, we will have extended panel discussions where the presenters will compare approaches, discuss connections to current experiments, seek to identify promising routes to overcome current challenges and answer questions of the audience. In addition to the official program, the workshop will have ample time for informal discussions during coffee breaks and social dinners. |
Year(s) Of Engagement Activity | 2016 |
URL | http://www.thomasyoungcentre.org/events/quantum-plasmonics-workshop/ |
Description | Royal Society Theo Murphy scientific meeting "New horizons in nanophotonics" |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Study participants or study members |
Results and Impact | Royal Society Theo Murphy scientific meeting "New horizons in nanophotonics" |
Year(s) Of Engagement Activity | 2016 |
Description | School visit, Winstanley College Wigan, June 2017, with the lecture on ``The Millennium Bridge Problem and Wave Cloaking'' |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Schools |
Results and Impact | This was a visit to the 6th form Winstanley College at Wigan on the 22 June 2017, with the lecture on ``The Millennium Bridge Problem and Wave Cloaking''. More than 50 school students and teaches attended the event, and the lecture has attracted a lot of interest in the area of metamaterials modelling and waves. |
Year(s) Of Engagement Activity | 2017 |
Description | Third Workshop on Seismic Metamaterials Bologna |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Other audiences |
Results and Impact | The workshop brought together researchers from several institutions, representing the state of the art in the field of seismic metamaterials, to share and discuss their results with colleagues. |
Year(s) Of Engagement Activity | 2017 |
Description | Trento PhD course |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Postgraduate students |
Results and Impact | 20 PhD students attended a course on "Metamaterials and seismic risk analysis for structural and mechanical systems", held at the University of Trento (Italy). The lectures were used in particular to spread the recent research achievements of the grant. |
Year(s) Of Engagement Activity | 2018 |
URL | https://webmagazine.unitn.it/evento/dicam/41642/metamaterials-and-seismic-risk-analysis-for-structur... |
Description | Trinational research day |
Form Of Engagement Activity | A formal working group, expert panel or dialogue |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Industry/Business |
Results and Impact | A meeting organised to discuss metamaterials. It involved scientists from the UK, US, Israel and various industry representatives. |
Year(s) Of Engagement Activity | 2016 |
Description | Workshop (ICMS) |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Other audiences |
Results and Impact | The aim of this meeting are to keep the UK at the forefront of developments in this rapidly developing field and to enable young researchers to meet and interact with established international experts. The workshop will bring together mathematicians, physicists and engineers to exchange ideas and contrast their different approaches to the theoretical and practical challenges that metamaterials present. |
Year(s) Of Engagement Activity | 2016 |
URL | http://www.icms.org.uk/workshop.php?id=384 |
Description | academic meeting |
Form Of Engagement Activity | Participation in an activity, workshop or similar |
Part Of Official Scheme? | No |
Geographic Reach | National |
Primary Audience | Study participants or study members |
Results and Impact | Modelling Metamaterials and waves in Multiscale systems with a guest lecture by Graeme Milton |
Year(s) Of Engagement Activity | 2016 |
Description | pint of science outreach |
Form Of Engagement Activity | A talk or presentation |
Part Of Official Scheme? | No |
Geographic Reach | Local |
Primary Audience | Public/other audiences |
Results and Impact | an outreach event by John Pendry |
Year(s) Of Engagement Activity | 2018 |