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Modulation cancellation method for measurements of small temperature differences in a gas |
Optics Letters, Vol. 36, Issue 4, pp. 460-462 (2011)
http://dx.doi.org/10.1364/OL.36.000460
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Abstract
An innovative spectroscopic technique based on balancing and cancellation of modulated signals induced by two excitation sources is reported. For its practical implementation, we used quartz-enhanced photoacoustic spectroscopy as an absorption-sensing technique and applied the new approach to measure small temperature differences between two gas samples. The achieved sensitivity was
© 2011 Optical Society of America
OCIS Codes
(140.5960) Lasers and laser optics : Semiconductor lasers
(280.3420) Remote sensing and sensors : Laser sensors
ToC Category:
Remote Sensing and Sensors
History
Original Manuscript: October 25, 2010
Revised Manuscript: December 21, 2010
Manuscript Accepted: January 5, 2011
Published: February 3, 2011
Citation
Vincenzo Spagnolo, Lei Dong, Anatoliy A. Kosterev, David Thomazy, James H. Doty, III, and Frank K. Tittel, "Modulation cancellation method for measurements of small temperature differences
in a gas," Opt. Lett. 36, 460-462 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-4-460
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