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Tunable Terahertz Cyclotron Emission from Two-Dimensional Dirac Fermions 
Auteur(s): Benhamou--Bui B., Gebert S., Szola M., Consejo C., Krishtopenko S., Ruffenach S., Torres Jeremie, Jouault B., Maussang K., Orlita M., Baudry X., Ballet P., Morozov S, Gavrilenko V, Mikhailov N, Dvoretskii S, Teppe F., Bray C.
Conference: 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2023) (Montreal, CA, 2023-09-17)
Actes de conférence: 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), vol. p.1-2 (2023)
Ref HAL: hal-04304349_v1
DOI: 10.1109/irmmw-thz57677.2023.10298862
Exporter : BibTex | endNote
Résumé: 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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