TY  - ABST
AU  - Bandurin, Denis
AU  - Svintsov, Dmitry
AU  - Gayduchenko, Igor
AU  - Xu, Shuigang
AU  - Principi, Alessandro
AU  - Moskotin, Maksim
AU  - Tretyakov, Ivan
AU  - Yagodkin, Denis
AU  - Zhukov, Sergey
AU  - Taniguchi, Takashi
AU  - Watanabe, Kenji
AU  - Grigorieva, Irina
AU  - Polini, Marco
AU  - Goltsman, Gregory
AU  - Geim, Andre
AU  - Fedorov, Georgy
PY  - 2019
DA  - 2019//
TI  - Resonant terahertz photoresponse and superlattice plasmons in graphene field-effect transistors
T2  - APS March Meeting
BT  - APS March Meeting
SP  - F14.015
AB  - Plasmons, collective oscillations of electron systems, can couple light and electric current, and thus can be used to create compact photodetectors, radiation mixers, and spectrometers. Despite the effort, it has proven challenging to implement plasmonic devices operating at THz frequencies. The material capable to meet this challenge is graphene as it supports long-lived electrically-tunable plasmons. In this talk, we will demonstrate plasmon-assisted resonant detection of THz radiation by antenna-coupled graphene FETs that act as both rectifying elements and plasmonic Fabry-Perot cavities amplifying the photoresponse. We will show that by varying the plasmon velocity using gate voltage, our detectors can be tuned between multiple resonant modes, a functionality that we apply to measure plasmons' wavelength and lifetime in graphene as well as to probe collective modes in its moire minibands. Our approach offers a convenient tool for further plasmonic research that is often difficult under non-ambient conditions and promises a viable route for various THz applications.  We acknowledge Leverhulme Trust, Russian Science Foundation Grants N18-72-00234 and 17-72-30036, Russian Foundation for Basic Research No. 18-57-06001 and 16-29-03402.
UR  - https://ui.adsabs.harvard.edu/abs/2019APS..MARF14015B/abstract
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1290), last updated on Tue, 01 Jun 2021 12:15:47 -0500
ID  - Bandurin_etal2019
ER  -