High speed multi-level phase devices for active spatial control
Lead Research Organisation:
University of Hull
Department Name: Chemistry
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
People |
ORCID iD |
Georg Hans Mehl (Principal Investigator) |
Publications
Fells JAJ
(2019)
Dynamic response of large tilt-angle flexoelectro-optic liquid crystal modulators.
in Optics express
Sandford O'Neill J
(2019)
Robust measurement of flexoelectro-optic switching with different surface alignments
in Journal of Applied Physics
Carvalho J
(2019)
Proton and Deuterium NMR Study of the CBC9CB Dimer System.
in The journal of physical chemistry. B
Merkel K
(2019)
Soft modes of the dielectric response in the twist-bend nematic phase and identification of the transition to a nematic splay bend phase in the CBC7CB dimer
in Physical Chemistry Chemical Physics
Merkel K
(2019)
Dielectric response of electric-field distortions of the twist-bend nematic phase for LC dimers.
in The Journal of chemical physics
Wang X
(2019)
Fast and low loss flexoelectro-optic liquid crystal phase modulator with a chiral nematic reflector.
in Scientific reports
Yip WC
(2020)
Analog modulation by the flexoelectric effect in liquid crystals.
in Applied optics
Stevenson W
(2020)
Macroscopic chirality of twist-bend nematic phase in bent dimers confirmed by circular dichroism
in Journal of Materials Chemistry C
Wang X
(2020)
A Compact Full 2p Flexoelectro-Optic Liquid Crystal Phase Modulator
in Advanced Materials Technologies
Iadlovska O
(2020)
Temperature dependence of bend elastic constant in oblique helicoidal cholesterics
in Physical Review Research
Heist L
(2020)
Probing molecular ordering in the nematic phases of para-linked bimesogen dimers through NMR studies of flexible prochiral solutes
in Liquid Crystals
Jin Y
(2020)
Millisecond Optical Phase Modulation Using Multipass Configurations with Liquid-Crystal Devices
in Physical Review Applied
Yu H
(2020)
Chirality enhancement in macro-chiral liquid crystal nanoparticles
in Materials Horizons
Wang X
(2020)
Transmissive flexoelectro-optic liquid crystal optical phase modulator with 2 p modulation
in AIP Advances
Saha R
(2021)
The interplay between spatial and heliconical orientational order in twist-bend nematic materials.
in Physical chemistry chemical physics : PCCP
Merkel K
(2021)
The role of intermolecular interactions in stabilizing the structure of the nematic twist-bend phase.
in RSC advances
Merkel K
(2021)
Molecular biaxiality determines the helical structure - infrared measurements of the molecular order in the nematic twist-bend phase of difluoro terphenyl dimer.
in Physical chemistry chemical physics : PCCP
Fells JAJ
(2022)
Dynamic phase measurement of fast liquid crystal phase modulators.
in Optics express
Kumar A
(2022)
Understanding Structural and Molecular Properties of Liquid Crystal Dimers: A Density Functional Approach
in Reports in Advances of Physical Sciences
Zavvou E
(2023)
Dipole-dipole correlations in the nematic phases of symmetric cyanobiphenyl dimers and their binary mixtures with 5CB
in Soft Matter
Description | the project is formally completed, however the collaborations between the teams is still ongoing. high birefringent materials and mixtures are supplied to the collaborating teams. High dielectric anisotropy materials and mixtures have been supplied in line with the work plan. On the way we have established a much better understanding of the twist bend nematic phase, The collaborating engineering teams have used our materials to design and construct new devices. In a number of collaborative publications the fast switching behaviour in flexoelectric properties focused devices was demonstrated. Furthermore, in collaboration with the project partners a number of prototype devices were constructed based on the materials synthesized by us; the focus being on fast switching 2pi flexo-electric light modulators. |
Exploitation Route | The collaborators in Oxford and Cambridge have constructed new devices and reported this in the literature; currently the work on the project is ongoing funded by other sources. We have provided and reported materials design and design rules which advances the field and can be used by others. Further collaborations (industry and academia) are planned. to exploit the results. |
Sectors | Chemicals,Digital/Communication/Information Technologies (including Software),Electronics |
Description | costshare exchange grant |
Amount | £24,000 (GBP) |
Funding ID | IE161650 |
Organisation | The Royal Society |
Sector | Charity/Non Profit |
Country | United Kingdom |
Start | 03/2017 |
End | 03/2019 |
Title | CD spectrometry to investigate spontaneous chirality formation in liquid crystals |
Description | The station B23 at Diamond Light Source Ltd. permits the collection of data in thin films where sample are positioned horizontally. This is critical as flow induced by gravity in vertically positioned films is avoided. Together with temperature control of macroscopically aligned films this permits the recording of signal related to the formation of chiral superstructures in non-chiral molecules. |
Type Of Material | Improvements to research infrastructure |
Year Produced | 2020 |
Provided To Others? | Yes |
Impact | A direct measurement method for emerging chirality in liquid crystal thin films. |
Description | flexoelectric materials |
Organisation | University of Cambridge |
Department | Department of Engineering |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | we provide materials to be investigated in the common project |
Collaborator Contribution | they provide us with data to optimize materials design |
Impact | no t yet, the project started 9 months ago |
Start Year | 2015 |