A compact QCL based methane and nitrous oxide sensor for environmental and medical applications

被引：85

作者：

Jahjah, Mohammad ^{[1
]}

Ren, Wei ^{[1
]}

Stefanski, Przemyslaw ^{[1
]}

Lewicki, Rafal ^{[1
]}

Zhang, Jiawei ^{[1
,3
]}

Jiang, Wenzhe ^{[1
]}

Tarka, Jan ^{[1
,2
]}

Tittel, Frank K. ^{[1
]}

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[2] Wroclaw Univ Technol, Laser & Fiber Elect Grp, PL-50370 Wroclaw, Poland

[3] Northeast Forestry Univ, Sch Electromech Engn, Harbin 150040, Heilongjiang Pr, Peoples R China

来源：

ANALYST | 2014年 / 139卷 / 09期

基金：

美国国家科学基金会;

关键词：

QUANTUM CASCADE LASERS; GREENHOUSE GASES; N2O;

D O I：

10.1039/c3an01452e

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A methane (CH4) and nitrous oxide (N2O) sensor based on a sensitive, selective and well established technique of quartz enhanced photoacoustic spectroscopy (QEPAS) was developed for environmental and biomedical measurements. A thermoelectrically cooled (TEC) distributed feedback quantum cascade laser (DFB-QCL), capable of continuous wave (CW) mode hop free emission in the 7.83 mu m wavelength range, was used as an excitation source. For the targeted CH4 and N2O absorption lines located at 1275.04 cm(-1) and 1275.49 cm(-1) detection limits (1 sigma) of 13 ppbv and 6 ppbv were achieved with a 1 second data acquisition time, respectively. Environmental data of CH4 and N2O mixing ratios acquired using the QEPAS sensor system are also reported.

引用

页码：2065 / 2069

页数：5

共 29 条

[1]

[Anonymous], 2009, GUID US NITR OX PED, V33, P190

[2]

Austin M., 2012, ACAD DENT LEARN OSHA, P21

[3]

Castillo P. C., 2013, P SOC PHOTO-OPT INS, V8718

[4] Compact QEPAS sensor for trace methane and ammonia detection in impure hydrogen [J].

Dong, L. ;

Wright, J. ;

Peters, B. ;

Ferguson, B. A. ;

Tittel, F. K. ;

McWhorter, S. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2012, 107 (02) :459-467

[5] Ultra-sensitive carbon monoxide detection by using EC-QCL based quartz-enhanced photoacoustic spectroscopy [J].

Dong, L. ;

Lewicki, R. ;

Liu, K. ;

Buerki, P. R. ;

Weida, M. J. ;

Tittel, F. K. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2012, 107 (02) :275-283

[6] QEPAS spectrophones: design, optimization, and performance [J].

Dong, L. ;

Kosterev, A. A. ;

Thomazy, D. ;

Tittel, F. K. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2010, 100 (03) :627-635

[7]

Faist J., 2013, Quantum Cascade Lasers

[8] Recent progress in quantum cascade lasers and applications [J].

Gmachl, C ;

Capasso, F ;

Sivco, DL ;

Cho, AY .

REPORTS ON PROGRESS IN PHYSICS, 2001, 64 (11) :1533-1601

[9] A QEPAS based methane sensor with a 2.35 μm antimonide laser [J].

Jahjah, M. ;

Vicet, A. ;

Rouillard, Y. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2012, 106 (02) :483-489

[10] Exchange of the Greenhouse Gases Methane and Nitrous Oxide Between the Atmosphere and a Temperate Peatland in Central Europe [J].

Juszczak, Radosaw ;

Augustin, Juergen .

WETLANDS, 2013, 33 (05) :895-907

← 1 2 3 →