A Broadband Pulsed External-Cavity Quantum Cascade Laser Operating near 6.9 μm

被引：6
|
作者：
Luo, Wei [1 ]
Duan, Chuan-Xi [1 ]
机构：
[1] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2016年 / 33卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Ambient air - External cavity - Fine-tuning ability - Lock-in amplifier - Pulsed mode;
D O I：
10.1088/0256-307X/33/2/024207
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report an external cavity quantum cascade laser (EC-QCL) operating near 6.9 mu m using the Littman-Metcalf configuration. The EC-QCL works in a pulsed mode and can be tuned continuously from 1340 to 1640 cm(-1) by only tilting the tuning mirror. The fine tuning ability of the EC-QCL is demonstrated by measuring the absorption spectrum of water in the ambient air with a lock-in amplifier.
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页数：3
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