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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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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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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Buric, MP
Chen, KPpec9@pitt.eduPEC90000-0002-4830-0817
Falk, Jfalk@pitt.eduFALK
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


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