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Title: Gas sensing system employing raman scattering

Abstract

A gas detection system includes a light detector, a pump laser with spectral emission between UV and IR wavelengths and structured to generate a laser beam, a hollow waveguide structured to receive a sample gas, the hollow waveguide having a bandwidth sufficient to transmit the laser beam and Stokes Raman photons scattered by the sample gas, and an optical system. The optical system is structured to: (i) direct the laser beam into the hollow waveguide such that it propagates in the hollow waveguide in one or more low-order low-loss waveguide modes, and (ii) direct Raman signals generated within the hollow waveguide in response to the laser beam interacting with the sample gas toward the light detector, the Raman signal including the Stokes Raman photons.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531908
Patent Number(s):
8674306
Application Number:
13/300,988
Assignee:
University of Pittsburgh--Of the Commonwealth System of Higher Education (Pittsburgh, PA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC26-04NT41817
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011-11-21
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Falk, Joel, Chen, Peng Kevin, Buric, Michael Paul, and Woodruff, Steven D. Gas sensing system employing raman scattering. United States: N. p., 2014. Web.
Falk, Joel, Chen, Peng Kevin, Buric, Michael Paul, & Woodruff, Steven D. Gas sensing system employing raman scattering. United States.
Falk, Joel, Chen, Peng Kevin, Buric, Michael Paul, and Woodruff, Steven D. Tue . "Gas sensing system employing raman scattering". United States. https://www.osti.gov/servlets/purl/1531908.
@article{osti_1531908,
title = {Gas sensing system employing raman scattering},
author = {Falk, Joel and Chen, Peng Kevin and Buric, Michael Paul and Woodruff, Steven D.},
abstractNote = {A gas detection system includes a light detector, a pump laser with spectral emission between UV and IR wavelengths and structured to generate a laser beam, a hollow waveguide structured to receive a sample gas, the hollow waveguide having a bandwidth sufficient to transmit the laser beam and Stokes Raman photons scattered by the sample gas, and an optical system. The optical system is structured to: (i) direct the laser beam into the hollow waveguide such that it propagates in the hollow waveguide in one or more low-order low-loss waveguide modes, and (ii) direct Raman signals generated within the hollow waveguide in response to the laser beam interacting with the sample gas toward the light detector, the Raman signal including the Stokes Raman photons.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {3}
}

Patent:

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