Far-infrared stimulated emission of Dirac fermions in CdHgTe heterostructures

Sergey Morozov,Vladimir V. Rumyantsev,Maxim S. Zholudev,Alexander A. Dubinov,Vladimir Ya Aleshkin,Vladimir V. Utochkin,Mikhail A. Fadeev,Konstantin E. Kudryavtsev,Nikolay N. Mikhailov,Sergey A. Dvoretsky,Vladimir Gavrilenko,Frederic Teppe

2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)（2021）

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摘要

We report on stimulated emission at wavelengths up to 31 mu m "closed" for quantum cascade lasers based on AmBv materials. For SE at 31 mu m the optical confinement is achieved due to Reststrahlen band in GaAs substrate. The mitigation of Auger processes in structures under study is exemplified and the promising routes towards the 35-50 mu m wavelength range, where HgCdTe lasers may be competitive to currently known emitters, are discussed.

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关键词

far-infrared stimulated emission,quantum cascade lasers,optical confinement,GaAs substrate,Auger processes,Dirac fermions,heterostructures,AIIIBV materials,Reststrahlen band,GaAs substrate,wavelength 35.0 mum to 50.0 mum,wavelength 31.0 mum,CdHgTe,GaAs

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