Study of the Spatial Characteristics of Emission of Surface-Emitting Ring Quantum-Cascade Lasers

被引：0
|
作者：
Babichev, A. V. [1 ]
Mikhailov, D. A. [2 ]
Chistyakov, D. V. [2 ]
Kolodeznyi, E. S. [1 ]
Gladyshev, A. G. [1 ]
Voznyuk, G. V. [2 ]
Mitrofanov, M. I. [2 ,4 ]
Denisov, D. V. [3 ]
Slipchenko, S. O. [2 ]
Lyutetskii, A. V. [2 ]
Dudelev, V. V. [2 ]
Evtikhiev, V. P. [2 ]
Karachinsky, L. Ya. [1 ]
Novikov, I. I. [1 ]
Pikhtin, N. A. [2 ]
Egorov, A. Yu. [5 ]
Sokolovskii, G. S. [2 ]
机构：
[1] ITMO Univ, St Petersburg 197101, Russia
[2] Ioffe Inst, St Petersburg 194021, Russia
[3] St Petersburg State Electrotech Univ LETI, St Petersburg 197022, Russia
[4] Russian Acad Sci, Submicron Heterostruct Microelect Res & Engn Ctr, St Petersburg 194021, Russia
[5] St Petersburg Natl Res Acad Univ, Russian Acad Sci, Alferov Fed State Budgetary Inst Higher Educ & Sci, St Petersburg 194021, Russia
来源：
SEMICONDUCTORS | 2023年 / 57卷 / 09期
基金：
俄罗斯科学基金会;
关键词：
ring cavity; grating; focused ion beam (FIB) etching; superlattices; quantum-cascade laser; epitaxy; indium phosphide;
D O I：
10.1134/S1063782623070023
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The results of studies of ring quantum-cascade lasers with surface emission due to a second-order grating formed in the top cladding layers are presented. Surface emission near 7.85 mu m with a low threshold current density (3.8 kA/cm(2)), in comparison with ridge quantum-cascade lasers of the same cavity length is demonstrated. The results of measurements of the intensity distribution of the near and far fields at different pumping levels are presented. The estimated value of the angle of beam extraction relative to the surface normal is in the range 5.7(degrees)-6.7(degrees).
引用
收藏
页码：377 / 382
页数：6
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