Improved sensitivity gas detection by spontaneous Raman scattering

被引：67

作者：

Buric, Michael P. ^{[1
,2
]}

Chen, Kevin P. ^{[1
,2
]}

Falk, Joel ^{[1
,2
]}

Woodruff, Steven D. ^{[1
]}

机构：

[1] Natl Energy Technol Lab, Morgantown, WV 26507 USA

[2] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA

来源：

APPLIED OPTICS | 2009年 / 48卷 / 22期

基金：

美国国家科学基金会;

关键词：

PHOTONIC BANDGAP FIBERS; CRYSTAL FIBER; CORE; AIR;

D O I：

10.1364/AO.48.004424

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Accurate, real-time measurement of the dilute constituents of a gaseous mixture poses a significant challenge usually relegated to mass spectrometry. Here, spontaneous Raman backscattering is used to detect low pressure molecular gases. Rapid detection of gases in the similar to 100 parts in 10(6) (ppm) range is described. Improved sensitivity is brought about by use of a hollow-core, photonic bandgap fiber gas cell in the backscattering configuration to increase collection efficiency and an image-plane aperture to greatly reduce silica-Raman background noise. Spatial and spectral properties of the silica noise were examined with a two-dimensional CCD detector array. (C) 2009 Optical Society of America

引用

页码：4424 / 4429

页数：6

共 16 条

[1] Enhanced fluorescence sensing using microstructured optical fibers: a comparison of forward and backward collection modes [J].

Afshar, Shahraam V. ;

Ruan, Yinlan ;

Warren-Smith, Stephen C. ;

Monro, Tanya M. .

OPTICS LETTERS, 2008, 33 (13) :1473-1475

[2] LASER-EXCITED ROTATION-VIBRATION RAMAN SCATTERING IN ULTRA-SMALL GAS SAMPLES [J].

BARRETT, JJ ;

ADAMS, NI .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1968, 58 (03) :311-+

[3]

BEYCHOK MR, 1974, 168 NAT M AM CHEM SO

[4]

BOYD RW, 1983, RADIOMETRY DETECTION, P132

[5] Enhanced spontaneous Raman scattering and gas composition analysis using a photonic crystal fiber [J].

Buric, Michael P. ;

Chen, Kevin P. ;

Falk, Joel ;

Woodruff, Steven D. .

APPLIED OPTICS, 2008, 47 (23) :4255-4261

[6] DETECTION METHODS FOR THE ANALYSIS OF BIOGENIC NONMETHANE HYDROCARBONS IN AIR [J].

CAO, XL ;

HEWITT, CN .

JOURNAL OF CHROMATOGRAPHY A, 1995, 710 (01) :39-50

[7] RAMAN CROSS-SECTION OF SOME SIMPLE GASES [J].

FENNER, WR ;

HYATT, HA ;

KELLAM, JM ;

PORTO, SPS .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1973, 63 (01) :73-77

[8] Dynamics of gas flow in hollow core photonic bandgap fibers [J].

Henningsen, Jes ;

Hald, Jan .

APPLIED OPTICS, 2008, 47 (15) :2790-2797

[9] Design and characterization of a Raman-scattering-based sensor system for temporally resolved gas analysis and its application in a gas turbine power plant [J].

Kiefer, J. ;

Seeger, T. ;

Steuer, S. ;

Schorsch, S. ;

Weikl, M. C. ;

Leipertz, A. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2008, 19 (08)

[10] Solid-core photonic crystal fiber as a Raman spectroscopy platform with a silica core as an internal reference [J].

Pristinski, Denis ;

Du, Henry .

OPTICS LETTERS, 2006, 31 (22) :3246-3248

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