Quantum cascade lasers with monolithic air-semiconductor Bragg reflectors

被引：24

作者：

Hvozdara, L ^{[1
]}

Lugstein, A ^{[1
]}

Finger, N ^{[1
]}

Gianordoli, S ^{[1
]}

Schrenk, W ^{[1
]}

Unterrainer, K ^{[1
]}

Bertagnolli, E ^{[1
]}

Strasser, G ^{[1
]}

Gornik, E ^{[1
]}

机构：

[1] Vienna Tech Univ, Inst Festkorperelektron, A-1040 Vienna, Austria

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 09期

关键词：

D O I：

10.1063/1.1289910

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electrically pumped GaAs/AlGaAs quantum cascade lasers with monolithic one-dimensional photonic-band gap mirrors are presented. The mirrors consist of two, precisely defined grooves trenched across the laser ridge using a focused ion beam. A substantial improvement of the laser performance is achieved due to the increased reflectivity of these mirrors. A decrease of the threshold current by 40% at 150 K is observed. The maximum operation temperature increases from 155 K for an unmodified laser to 170 K for the laser with the modified mirrors, and an increase of the T-0 parameter from 99 to 114 K is found. (C) 2000 American Institute of Physics. [S0003-6951(00)00935-9].

引用

页码：1241 / 1243

页数：3

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