Thin active region HgCdTe-based quantum cascade laser with quasi-relativistic dispersion law

被引：4

作者：

Dubinov, A. A. ^{[1
]}

Ushakov, D., V ^{[2
]}

Afonenko, A. A. ^{[2
]}

Khabibullin, R. A. ^{[3
,4
]}

Fadeev, M. A. ^{[1
]}

Morozov, S., V ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Phys Microstruct, GSP 105, Nizhnii Novgorod 603950, Russia

[2] Belarusian State Univ, 4 Nezavisimosti Ave, Minsk 220030, BELARUS

[3] VG Mokerov Inst Ultrahigh Frequency Semicond Elec, 7-5 Nagornyy Proezd, Moscow 117105, Russia

[4] Moscow Inst Phys & Technol, 9 Inst Sky Lane, Dolgoprudnyi 141701, Russia

来源：

OPTICS LETTERS | 2022年 / 47卷 / 19期

关键词：

THZ; SPECTRA;

D O I：

10.1364/OL.470688

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

HgCdTe is promising as a material to solve a problem of the development of semiconductor sources with an operational frequency range of 6-10 THz due to the small optical phonon energies and electron effective mass. In this study, we calculate the dependence of the metal-metal waveguide characteristics on the number of cascades for the 3-well design HgCdTe-based quantum cascade laser at 8.3 THz. It is shown that four cascades are sufficient for lasing at a lattice temperature of 80 K due to the large gain in the active medium. The results of this study provide a way to simplify the fabrication of thin active region HgCdTe-based quantum cascade lasers for operation in the range of the GaAs phonon Reststrahlen band inaccessible to existing quantum cascade lasers. (C) 2022 Optica Publishing Group

引用

页码：5048 / 5051

页数：4

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