OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 21 — Jul. 20, 2003
  • pp: 4396–4399

Detection of Methane with High Spatial Resolution with Photothermal Deflection Spectroscopy

Yunjing Li and Rajendra Gupta  »View Author Affiliations


Applied Optics, Vol. 42, Issue 21, pp. 4396-4399 (2003)
http://dx.doi.org/10.1364/AO.42.004396


View Full Text Article

Acrobat PDF (237 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We demonstrate the use of photothermal deflection spectroscopy for detection and measurement of methane with very high spatial resolution. A high spatial resolution may be important for some applications, and other techniques in current use do not provide this resolution. To the best of our knowledge, this is the first application of photothermal spectroscopy to methane detection. We have succeeded in detecting a signal even from a very weak combination-overtone band of methane in the visible region of the spectrum. If used in conjunction with a strongly absorbing fundamental band, the technique is capable of yielding high sensitivity along with very high spatial and temporal resolutions.

© 2003 Optical Society of America

OCIS Codes
(010.1120) Atmospheric and oceanic optics : Air pollution monitoring
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(300.0300) Spectroscopy : Spectroscopy
(300.6430) Spectroscopy : Spectroscopy, photothermal

Citation
Yunjing Li and Rajendra Gupta, "Detection of Methane with High Spatial Resolution with Photothermal Deflection Spectroscopy," Appl. Opt. 42, 4396-4399 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-21-4396

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. 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

OSA is a member of CrossRef.

CrossCheck Deposited