An Antenna-Coupled Dual-Gated Electron Channel As Direct Detector Of 2 THz Radiation

Poster (OPTO-P1)

Wed, 11 Nov 2020 01:15am to 03:00am

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Event Picture:

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.

Download Abstract: irmmw-abstract-michailow.pdf

Presenters and Authors Info

Presenter: Anonymous

Authors: Michailow, Wladislaw; Waldie, Joanna; Spencer, Peter; Almond, Nikita; Kindness, Stephen; Wu, Yuqing; Wei, Binbin; Wallis, Robert; Mitchell, Thomas; Degl’Innocenti, Riccardo; Beere, Harvey; Ritchie, David

Cavendish Laboratory, University of Cambridge, Department of Engineering, University of Lancaster