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Optics Letters

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  • Vol. 29, Iss. 10 — May. 14, 2004
  • pp: 1066–1068

Quantitative detection of singlet O2 by cavity-enhanced absorption

Skip Williams, Manish Gupta, Thomas Owano, Douglas S. Baer, Anthony O'Keefe, David R. Yarkony, and Spiridoula Matsika  »View Author Affiliations


Optics Letters, Vol. 29, Issue 10, pp. 1066-1068 (2004)
http://dx.doi.org/10.1364/OL.29.001066


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Abstract

A method for the practical determination of the absolute concentration of single (a1Δg) oxygen is discussed. The method is based on sensitive off-axis integrated-cavity-output spectroscopy (ICOS). Off-axis ICOS allows narrowband, continuous-wave lasers to be used in conjunction with optical cavities to record sensitive absorption measurements. The details of the method as well as spectroscopic data confirming the first observation of the (1,0) band of the b1g+–a1 Δg Noxon system are presented. The absolute transition probabilities for the b1g+–a1Δg Noxon system, which are not known precisely from experiments, are determined by quantum chemistry theory.

© 2004 Optical Society of America

OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.1880) Instrumentation, measurement, and metrology : Detection
(300.1030) Spectroscopy : Absorption
(300.6390) Spectroscopy : Spectroscopy, molecular

Citation
Skip Williams, Manish Gupta, Thomas Owano, Douglas S. Baer, Anthony O'Keefe, David R. Yarkony, and Spiridoula Matsika, "Quantitative detection of singlet O2 by cavity-enhanced absorption," Opt. Lett. 29, 1066-1068 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-10-1066


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