Controlling the PT Symmetry of Dirac Plasmons in Dual-Grating-Gate Graphene THz Laser Transistors for Ultrafast Gain Switching

Taiichi Otsuji, Akira Satou, Hirokazu Fukidome, Maxim Ryzhii, Victor Ryzhii, Koichi Narahara

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We introduce a new scheme of actively controlling the PT symmetry of the graphene Dirac plasmon metasurface in a graphene-channel laser transistor structure. Numerical simulation demonstrates the capability of 100-Gbit/s-class ultrafast gain-switching in its plasmonic THz laser operation by electrically modulating the PT symmetry by the applied bias voltages.

Original languageEnglish
Title of host publication2022 Conference on Lasers and Electro-Optics, CLEO 2022 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781957171050
Publication statusPublished - 2022
Event2022 Conference on Lasers and Electro-Optics, CLEO 2022 - San Jose, United States
Duration: 2022 May 152022 May 20

Publication series

Name2022 Conference on Lasers and Electro-Optics, CLEO 2022 - Proceedings

Conference

Conference2022 Conference on Lasers and Electro-Optics, CLEO 2022
Country/TerritoryUnited States
CitySan Jose
Period22/5/1522/5/20

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