Acoustoelectric Methods for the Generation Manipulation and Detection of THz Radiation
Lead Research Organisation:
University of Leeds
Department Name: Electronic and Electrical Engineering
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.
Organisations
Publications
Bacon D
(2019)
Photoconductive Arrays for High-Field Terahertz Generation
Bacon D
(2016)
Free-space terahertz radiation from a LT-GaAs-on-quartz large-area photoconductive emitter
in Optics Express
Dawood A
(2021)
Effect of mesa geometry on low-terahertz frequency range plasmons in two-dimensional electron systems
in Journal of Physics D: Applied Physics
Dawood A
(2019)
Full-wave modelling of terahertz frequency plasmons in two-dimensional electron systems
in Journal of Physics D: Applied Physics
Dean J
(2015)
A sound idea: Manipulating domain walls in magnetic nanowires using surface acoustic waves
in Applied Physics Letters
Dunn A
(2020)
High-speed modulation of a terahertz quantum cascade laser by coherent acoustic phonon pulses.
in Nature communications
| Description | This grant has allowed a detailed investigation of the modulation of two dimensional acoustic waves and THz quantum cascade lasers using bulk acoustic waves. Light modulators for THz radiation are a fundamental component of many potential terahertz systems, and are key to transmission of information by a terahertz carrier wave. The main output from this grant was a Nature Communications paper which demonstrated fast modulation of light output from a THz QCL, a topic on which several further grants are now being written. |
| Exploitation Route | Building new terahertz systems. Fast modulation schemes for THz QCLs leading to new communications systems. |
| Sectors | Electronics |
| Description | The work on this grant led to significant academic Impact by nucleating the area of acoustic perturbation of superlattice structures. This work was report in Nature Communications, and was reported on by many news organisation internationally. The work led directly to additional funding by way of a joint Leeds / Nottingham EPSRC grants, EP/V004743/1 and EP/V004751/1. In addition, the establishment of the general area of modulation of terahertz quantum cascade lasers that this grant partly initiated later led to a Programme Grant with Cambridge and UCL, Teracom, EP/W028921/1, in which we are seeking to develop inter-satellite links and faster links within data centres enabled by fast modulation schemes for such quantum cascade lasers. While commercialisation is still some time away, this grant contributed to developing these areas as viable areas of exploration with ICT. |
| First Year Of Impact | 2020 |
| Sector | Digital/Communication/Information Technologies (including Software) |
| Impact Types | Societal |
| Title | Data associated with 'Confinement of picosecond timescale current pulses by tapered coplanar waveguides.' |
| Description | This data relates to the study of picosecond timescale pulse transmission and confinement in tapered waveguides. It includes the HFSS data which shows average electric field strength and confinement area, and a sample of transmitted THz pulses. It also includes THz peak position with distance for a curved tapered waveguide, and the current response in tapered and untapered GMR waveguides as a function of external magnetic field. |
| Type Of Material | Database/Collection of data |
| Year Produced | 2018 |
| Provided To Others? | Yes |
| URL | https://archive.researchdata.leeds.ac.uk/339/ |