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Author Belosevich, V. V.; Gayduchenko, I. A.; Titova, N. A.; Zhukova, E. S.; Goltsman, G. N.; Fedorov, G. E.; Silaev, A. A.
Title Response of carbon nanotube film transistor to the THz radiation Type Conference Article
Year 2018 Publication EPJ Web Conf. Abbreviated Journal EPJ Web Conf.
Volume (down) 195 Issue Pages 05012 (1 to 2)
Keywords field-effect transistor, FET, carbon nanotube, CNT
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Series Volume Series Issue Edition
ISSN 2100-014X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 1317
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Author Matyushkin, Y.; Danilov, S.; Moskotin, M.; Belosevich, V.; Kaurova, N.; Rybin, M.; Obraztsova, E. D.; Fedorov, G.; Gorbenko, I.; Kachorovskii, V.; Ganichev, S.
Title Helicity-sensitive plasmonic terahertz interferometer Type Journal Article
Year 2020 Publication Nano Lett. Abbreviated Journal Nano Lett.
Volume (down) 20 Issue 10 Pages 7296-7303
Keywords graphene, plasmonic interferometer, radiation helicity, terahertz radiation
Abstract Plasmonic interferometry is a rapidly growing area of research with a huge potential for applications in the terahertz frequency range. In this Letter, we explore a plasmonic interferometer based on graphene field effect transistor connected to specially designed antennas. As a key result, we observe helicity- and phase-sensitive conversion of circularly polarized radiation into dc photovoltage caused by the plasmon-interference mechanism: two plasma waves, excited at the source and drain part of the transistor, interfere inside the channel. The helicity-sensitive phase shift between these waves is achieved by using an asymmetric antenna configuration. The dc signal changes sign with inversion of the helicity. A suggested plasmonic interferometer is capable of measuring the phase difference between two arbitrary phase-shifted optical signals. The observed effect opens a wide avenue for phase-sensitive probing of plasma wave excitations in two-dimensional materials.
Address CENTERA Laboratories, Institute of High Pressure Physics, PAS, 01-142 Warsaw, Poland
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Series Volume Series Issue Edition
ISSN 1530-6984 ISBN Medium
Area Expedition Conference
Notes PMID:32903004 Approved no
Call Number Serial 1781
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