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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 18 — Sep. 15, 2008
  • pp: 2143–2145

Near-confocal cavity-enhanced Raman spectroscopy for multitrace-gas detection

Xiaoyun Li, Yuxing Xia, Li Zhan, and Juming Huang  »View Author Affiliations


Optics Letters, Vol. 33, Issue 18, pp. 2143-2145 (2008)
http://dx.doi.org/10.1364/OL.33.002143


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Abstract

Simultaneous detection of multitrace gas is still a challenge. Near-confocal cavity-enhanced Raman spectroscopy is proposed and demonstrated for simultaneous detection of multitracegas. With a 200 mW incident laser, the excitation power of > 9 W forms at two foci of the near-confocal cavity owing to the beam being reflected 50 times. High-power excitation light greatly enhances the detection sensitivity of the Raman system. Using this cavity-enhancing technique, high-sensitivity detection of the mixture of eight gases with same volume ratio has been achieved. This technique may be applied for detecting multitrace gas in many areas.

© 2008 Optical Society of America

OCIS Codes
(300.6450) Spectroscopy : Spectroscopy, Raman
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Spectroscopy

History
Original Manuscript: April 22, 2008
Revised Manuscript: August 3, 2008
Manuscript Accepted: August 7, 2008
Published: September 12, 2008

Citation
Xiaoyun Li, Yuxing Xia, Li Zhan, and Juming Huang, "Near-confocal cavity-enhanced Raman spectroscopy for multitrace-gas detection," Opt. Lett. 33, 2143-2145 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-18-2143

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