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Miniature fiber-tip photoacoustic spectrometer for trace gas detection |
Optics Letters, Vol. 38, Issue 4, pp. 434-436 (2013)
http://dx.doi.org/10.1364/OL.38.000434
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Abstract
We demonstrate a fiber-tip photoacoustic spectrometric sensor for trace gas detection. The sensor head is a miniature fiber-tip hollow-cavity with a deflectable polymer diaphragm. Periodic light absorption of gas molecules within the cavity generates an acoustic pressure wave, which causes deflection of the diaphragm. The hollow cavity also is a Fabry–Perot interferometer with which the diaphragm deflection is detected with high sensitivity. Experimental test around the P(9) absorption line of
© 2013 Optical Society of America
OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(280.4788) Remote sensing and sensors : Optical sensing and sensors
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: November 27, 2012
Revised Manuscript: December 13, 2012
Manuscript Accepted: January 4, 2013
Published: February 8, 2013
Citation
Yingchun Cao, Wei Jin, Hoi Lut Ho, and Jun Ma, "Miniature fiber-tip photoacoustic spectrometer for trace gas detection," Opt. Lett. 38, 434-436 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-4-434
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