Improved sensitivity gas detection by spontaneous Raman scattering

Buric, MP and Chen, KP and Falk, J and Woodruff, SD (2009) Improved sensitivity gas detection by spontaneous Raman scattering. Applied Optics, 48 (22). 4424 - 4429. ISSN 1559-128X

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Abstract

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 ∼100 parts in 106 (ppm) range is described. Improved sensitivity is brought about by use of a hollow-core, photonic bandgap fiber gas cell in the back-scattering 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. © 2009 Optical Society of America.

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Details

Item Type:	Article
Status:	Published
Creators/Authors:	Creators Email Pitt Username ORCID Buric, MP Chen, KP pec9@pitt.edu PEC9 0000-0002-4830-0817 Falk, J falk@pitt.edu FALK Woodruff, SD
Date:	1 August 2009
Date Type:	Publication
Journal or Publication Title:	Applied Optics
Volume:	48
Number:	22
Page Range:	4424 - 4429
DOI or Unique Handle:	10.1364/ao.48.004424
Schools and Programs:	Swanson School of Engineering > Electrical and Computer Engineering
Refereed:	Yes
ISSN:	1559-128X
PubMed ID:	19649047
Date Deposited:	09 Jun 2014 15:26
Last Modified:	22 Jun 2021 13:56
URI:	http://d-scholarship.pitt.edu/id/eprint/21719

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