Role of elastic scattering mechanisms in GaInAs/AlInAs quantum cascade lasers

被引：47

作者：

Vasanelli, A. ^{[1
]}

Leuliet, A.

Sirtori, C.

Wade, A.

Fedorov, G.

Smirnov, D.

Bastard, G.

Vinter, B.

Giovannini, M.

Faist, J.

机构：

[1] Univ Paris 07, Lab Mat & Phenomenes Quant, F-75005 Paris, France

[2] Thales Res & Technol, F-91767 Palaiseau, France

[3] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[4] Ecole Normale Super, Lab Pierre Aigrain, F-75005 Paris, France

[5] Univ Nice, Ctr Rech Hetero Epitaxie & Appl, F-06560 Valbonne, France

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 17期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2361264

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electron scattering spectroscopy has been performed on a GaInAs/AlInAs midinfrared quantum cascade laser by applying a strong magnetic field along its growth axis. The interpretation of the experimental data, supported by our model of the electron lifetime in the presence of a strong magnetic field, very clearly demonstrates that the elastic contribution to the total scattering rate has a weight comparable to that of the optical phonons. The authors believe that this contribution has its origin in the alloy disorder, an efficient mechanism in this material system, which limits the lifetime of the excited subband of the laser transition. (c) 2006 American Institute of Physics.

引用

页数：3

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