Temperature Dependences of the Threshold Current and Output Power of a Quantum-Cascade Laser Emitting at 3.3 THz

被引：11
|
作者：
Khabibullin, R. A. [1 ]
Shchavruk, N. V. [1 ]
Ponomarev, D. S. [1 ]
Ushakov, D. V. [2 ]
Afonenko, A. A. [2 ,4 ]
Vasil'evskii, I. S. [3 ]
Zaycev, A. A.
Danilov, A. I. [5 ]
Volkov, O. Yu. [6 ]
Pavlovskiy, V. V. [6 ]
Maremyanin, K. V. [7 ]
Gavrilenko, V. I. [7 ]
机构：
[1] Russian Acad Sci, Inst Ultra High Frequency Semicond Elect, Moscow 117105, Russia
[2] Belarusian State Univ, Minsk 220030, BELARUS
[3] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia
[4] Natl Res Univ Elect Technol MIET, Moscow 124498, Russia
[5] AO Polyus Res Inst MF Stelmakh, Moscow 117342, Russia
[6] Russian Acad Sci, Inst Radio Engn & Elect, Moscow 125009, Russia
[7] Russian Acad Sci, Inst Phys Microstruct, Nizhnii Novgorod 603950, Russia
来源：
SEMICONDUCTORS | 2018年 / 52卷 / 11期
基金：
俄罗斯基础研究基金会; 俄罗斯科学基金会;
关键词：
WAVE-GUIDE; ENERGY; BAND;
D O I：
10.1134/S1063782618110118
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The active region of a THz (terahertz) quantum-cascade laser based on three tunnel-coupled GaAs/Al0.15Ga0.85As quantum wells with a resonance-phonon depopulation scheme is designed. Energy levels, matrix elements of dipole transitions, and gain spectra are calculated as functions of the applied electric-field strength F and temperature. It is shown that the maximum gain is implemented at a frequency of 3.37THz and F = 12.3 kV/cm. Based on the proposed design, a quantum-cascade laser emitting at similar to 3.3 THz with a double metal waveguide and T-max similar to 84 K is fabricated. The activation energy E-a = 23 meV for longitudinal-optical (LO) phonon emission upon the stimulated recombination of hot electrons from the upper laser level to the lower one is determined from the Arrhenius temperature dependence of the output power.
引用
收藏
页码：1380 / 1385
页数：6
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