OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 36, Iss. 4 — Feb. 15, 2011
  • pp: 460–462

Modulation cancellation method for measurements of small temperature differences in a gas

Vincenzo Spagnolo, Lei Dong, Anatoliy A. Kosterev, David Thomazy, James H. Doty, III, and Frank K. Tittel  »View Author Affiliations


Optics Letters, Vol. 36, Issue 4, pp. 460-462 (2011)
http://dx.doi.org/10.1364/OL.36.000460


View Full Text Article

Enhanced HTML    Acrobat PDF (346 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

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 30 mK in 17 s. A theoretical sensitivity analysis is presented, and the applicability of this method to isotopic measurements is discussed.

© 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

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited