Widely tunable mode-hop free external cavity quantum cascade lasers for high resolution spectroscopy and chemical sensing

被引：187

作者：

Wysocki, G. ^{[1
]}

Lewicki, R. ^{[2
]}

Curl, R. F. ^{[2
]}

Tittel, F. K. ^{[2
]}

Diehl, L. ^{[3
]}

Capasso, F. ^{[3
]}

Troccoli, M. ^{[3
]}

Hofler, G. ^{[4
]}

Bour, D. ^{[4
]}

Corzine, S. ^{[4
]}

Maulini, R. ^{[5
]}

Giovannini, M. ^{[5
]}

Faist, J. ^{[5
,6
]}

机构：

[1] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[2] Rice Univ, Rice Quantum Inst, Houston, TX 77005 USA

[3] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[4] Agilent Labs, Palo Alto, CA 94304 USA

[5] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

[6] ETH, CH-8093 Zurich, Switzerland

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2008年 / 92卷 / 03期

关键词：

D O I：

10.1007/s00340-008-3047-x

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Recent progress in the development of room temperature, continuous wave, widely tunable, mode-hop-free mid-infrared external cavity quantum cascade laser (EC-QCL) spectroscopic sources is reported. A single mode tuning range of 155 cm(-1) (similar to 8% of the center wavelength) with a maximum power of 11.1 mW and 182 cm(-1) (similar to 15% of the center wavelength) with a maximum power of 50 mW was obtained for 5.3 and 8.4 mu m EC-QCLs respectively. This technology is particularly suitable for high resolution spectroscopic applications, multi species trace-gas detection and spectroscopic measurements of broadband absorbers. Several examples of spectroscopic measurements performed using EC-QCL based spectrometers are demonstrated.

引用

页码：305 / 311

页数：7

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