GaAs/AlGaAs quantum cascade laser - a source for gas absorption spectroscopy

被引：11

作者：

Hvozdara, L ^{[1
]}

Gianordoli, S

Strasser, G

Schrenk, W

Unterrainer, K

Gornik, E

Murthy, CSSS

Kraft, M

Pustogow, V

Mizaikoff, B

机构：

[1] TU Wien, Solid State Elect, Vienna, Austria

[2] Vienna Tech Univ, Inst Analyt Chem, A-1040 Vienna, Austria

来源：

PHYSICA E | 2000年 / 7卷 / 1-2期

关键词：

quantum cascade lasers; gas spectroscopy; GaAs laser;

D O I：

10.1016/S1386-9477(99)00305-7

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report on an application of the recently developed electrically pumped GaAs/AlGaAs quantum cascade lasers in gas spectroscopy. Laser light with emission maximum at 10.009 mu m is used to investigate the absorption in side bands of the vibrational spectrum of ethene at atmospheric pressure. Different mixtures of helium and ethene with known concentrations are flushed through an absorption cell. Laser radiation passing through the gas absorption cell is analyzed using a Fourier transform spectrometer. The laser spectrum is modulated by the ethene absorption. The experimentally obtained discrete spectrum is compared with the Hitran database, showing full agreement. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：37 / 39

页数：3

共 5 条

[1] QUANTUM CASCADE LASER [J].