Tunable Terahertz Cyclotron Emission from Two-Dimensional Dirac Fermions - Laboratoire Charles Coulomb (L2C) Access content directly
Conference Papers Year : 2023

Tunable Terahertz Cyclotron Emission from Two-Dimensional Dirac Fermions

Benoit Jouault
Cédric Bray
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  • PersonId : 1115036

Abstract

We report on the emission of Terahertz radiation from Landau quantized Dirac electrons in HgTe/CdHgTe based quantum wells. We show that this cyclotron emission is continuously tunable with magnetic field from 500 GHz up to 2.5 THz. Moreover, given the relativistic nature of charge carriers, the cyclotron mass and therefore the emitted frequency are also tunable with the electron density. These results pave the way for the long-awaited Landau laser which could additionally be tunable by a gate voltage with a fixed magnetic field.
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Dates and versions

hal-04304349 , version 1 (24-11-2023)

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B. Benhamou--Bui, S. Gebert, M. Szola, C. Consejo, S S Krishtopenko, et al.. Tunable Terahertz Cyclotron Emission from Two-Dimensional Dirac Fermions. 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2023), Sep 2023, Montreal, Canada. pp.1-2, ⟨10.1109/irmmw-thz57677.2023.10298862⟩. ⟨hal-04304349⟩
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