Seddon, J;
Hale, L;
Jung, H;
Norman, S;
Addamane, S;
Brener, I;
Renaud, C;
(2023)
LT-GaAs metasurfaces as continuous-wave THz detectors operating in the telecommunications band.
In:
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz.
IEEE
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Abstract
We present a novel approach for efficient continuous-wave (CW) detection of terahertz (THz) radiation using low-temperature-grown gallium arsenide (LT-GaAs) meta-surfaces. While typical THz CW detectors require complex material growth, annealing, and device architectures, our approach demonstrates that LT-GaAs, despite its low absorption at infrared wavelengths, can be used for low-noise THz detection by nanostructuring it into a metasurface.
| Type: | Proceedings paper |
|---|---|
| Title: | LT-GaAs metasurfaces as continuous-wave THz detectors operating in the telecommunications band |
| Event: | 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) |
| Dates: | 17 Sep 2023 - 22 Sep 2023 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/IRMMW-THz57677.2023.10299343 |
| Publisher version: | http://dx.doi.org/10.1109/irmmw-thz57677.2023.1029... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Millimeter wave devices , Annealing , Absorption , Gallium arsenide , Detectors , Metasurfaces , Nanoscale devices |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10185843 |
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