Hale, LL;
Vabischevich, PP;
Siday, T;
Harris, CT;
Reno, JL;
Brener, I;
Mitrofanov, O;
(2021)
Tunable Fully Absorbing Metasurfaces for Efficient THz Detection.
In:
Proceedings of the 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
(pp. pp. 252-253).
Institute of Electrical and Electronics Engineers (IEEE)
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Abstract
Terahertz photoconductive antennas with a nanostructured active region have been actively investigated recently with a goal to achieve high efficiency THz detectors and emitters. Here we provide a novel design of perfectly-absorbing photoconductive region without plasmonic elements using a metasurface, and provide a systematic method by which the metasurface can be designed to work optimally for varying optical gate frequencies across the GaAs band-gap. This paves the way to using metasurface devices for THz detection and other applications in a wide range of laser systems operating at different wavelengths or with different photoconductive materials.
| Type: | Proceedings paper |
|---|---|
| Title: | Tunable Fully Absorbing Metasurfaces for Efficient THz Detection |
| Event: | 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) 2020 |
| Location: | Buffalo (NY), USA |
| Dates: | 8th-13th November 2020 |
| ISBN-13: | 9781728166209 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/IRMMW-THz46771.2020.9370395 |
| Publisher version: | https://doi.org/10.1109/IRMMW-THz46771.2020.937039... |
| 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. |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Engineering Science Faculty Office |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10145969 |
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