An Antenna-Coupled Dual-Gated Electron Channel as Direct Detector of 2 THz Radiation
| Autor: | David A. Ritchie, Thomas M. Mitchell, Nikita W. Almond, R. Wallis, Binbin Wei, Harvey E. Beere, Stephen J. Kindness, J. Waldie, Yuqing Wu, Riccardo Degl'Innocenti, Wladislaw Michailow, Peter Spencer |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Electron channel business.industry Terahertz radiation Detector 020206 networking & telecommunications Heterojunction 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Thz radiation 0202 electrical engineering electronic engineering information engineering Optoelectronics Antenna (radio) business Fermi gas |
| Zdroj: | 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| DOI: | 10.1109/irmmw-thz46771.2020.9370817 |
| Popis: | An antenna-coupled dual-gated two-dimensional electron gas (2DEG) based on a GaAs-AlGaAs heterostructure shows a pronounced response to 2 THz radiation. The device is shown to be a direct detector, and its photoresponse arises without any source-drain bias. The detection is based on a novel mechanism that yields a substantially stronger photoresponse than predicted by the classical plasma-wave self-mixing and other mechanisms. |
| Databáze: | OpenAIRE |
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