Quartz-Enhanced Photoacoustic Spectroscopy Trace Gas Detection System Based on the Fabry-Perot Demodulation

被引：4

作者：

Lin Cheng ^{[1
]}

Zhu Yong ^{[1
]}

Wei Wei ^{[1
]}

Zhang Jie ^{[1
]}

Tian Li ^{[1
]}

Xu Zu-wen ^{[1
]}

机构：

[1] Chongqing Univ, Coll Optoelect Engn, Chongqing 400044, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2013年 / 33卷 / 05期

关键词：

Trace gas detection; Photoacoustic spectroscopy; Quartz-enhanced; Fabry-Perot demodulation;

D O I：

10.3964/j.issn.1000-0593(2013)05-1163-04

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

An all-optical quartz-enhanced photoacoustic spectroscopy system, based on the F-P demodulation, for trace gas detection in the open environment was proposed. In quartz-enhanced photoacoustic spectroscopy (QEPAS), an optical fiber Fabry-Perot method was used to replace the conventional electronic demodulation method. The photoacoustic signal was obtained by demodulating the variation of the Fabry-Perot cavity between the quartz tuning fork side and the fiber face. An experimental system was setup. The experiment for detection of water vapour in the open environment was carried on. A normalized noise equivalent absorption coefficient of 2. 80 x 10(-7) cm(-1).W.Hz(-1/2) was achieved. The result demonstrated that the sensitivity of the all-optical quartz-enhanced photoacoustic spectroscopy system is about 2. 6 times higher than that of the conventional QEPAS system. The all-optical quartz-enhanced photoacoustic spectroscopy system is immune to electromagnetic interference, safe in flammable and explosive gas detection, suitable for high temperature and high humidity environments and realizable for long distance, multi-point and network sensing.

引用

页码：1163 / 1166

页数：4

共 12 条

[1] Laser diode photoacoustic and FTIR laser spectroscopy of formaldehyde in the 2.3 μm and 3.5 μm spectral range [J].

Cihelka, Jaroslav ;

Matulkova, Irena ;

Civis, Svatopluk .

JOURNAL OF MOLECULAR SPECTROSCOPY, 2009, 256 (01) :68-74

[2] Ppb-level detection of nitric oxide using an external cavity quantum cascade laser based QEPAS sensor [J].

Dong, Lei ;

Spagnolo, Vincenzo ;

Lewicki, Rafal ;

Tittel, Frank K. .

OPTICS EXPRESS, 2011, 19 (24) :24037-24045

[3] Detection of nitric oxide in air with a 5.2 μm distributed-feedback quantum cascade laser using quartz-enhanced photoacoustic spectroscopy [J].

Gray, Stuart ;

Liu, Anping ;

Xie, Feng ;

Zah, Chung-en .

OPTICS EXPRESS, 2010, 18 (22) :23353-23357

[4] Quantum Cascade Laser-Based Photoacoustic Spectroscopy for Trace Vapor Detection and Molecular Discrimination [J].

Holthoff, Ellen ;

Bender, John ;

Pellegrino, Paul ;

Fisher, Almon .

SENSORS, 2010, 10 (03) :1986-2002

[5] Quartz-enhanced photoacoustic spectroscopy [J].

Kosterev, AA ;

Bakhirkin, YA ;

Curl, RF ;

Tittel, FK .

OPTICS LETTERS, 2002, 27 (21) :1902-1904

[6] Trace gas sensor based on quartz tuning fork enhanced laser photoacoustic spectroscopy [J].

Liu, K. ;

Li, J. ;

Wang, L. ;

Tan, T. ;

Zhang, W. ;

Gao, X. ;

Chen, W. ;

Tittel, F. K. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2009, 94 (03) :527-533

[7] Application of acoustic resonators in photoacoustic trace gas analysis and metrology [J].

Miklós, A ;

Hess, P ;

Bozóki, Z .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (04) :1937-1955

[8] Theoretical analysis of a quartz-enhanced photoacoustic spectroscopy sensor [J].

Petra, N. ;

Zweck, J. ;

Kosterev, A. A. ;

Minkoff, S. E. ;

Thomazy, D. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2009, 94 (04) :673-680

[9] Photoacoustic spectroscopy for process analysis [J].

Schmid, T .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2006, 384 (05) :1071-1086

[10] NO trace gas sensor based on quartz-enhanced photoacoustic spectroscopy and external cavity quantum cascade laser [J].

Spagnolo, V. ;

Kosterev, A. A. ;

Dong, L. ;

Lewicki, R. ;

Tittel, F. K. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2010, 100 (01) :125-130

← 1 2 →