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Applied Optics

Applied Optics


  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 31 — Nov. 1, 2005
  • pp: 6593–6598

Detection of high-temperature water vapor at 940 nm with vertical-cavity surface-emitting lasers

Heidi Cattaneo and Rolf Hernberg  »View Author Affiliations

Applied Optics, Vol. 44, Issue 31, pp. 6593-6598 (2005)

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A vertical-cavity surface-emitting laser was used to study the absorption of water vapor in the 940 nm region. Measurements for several absorption lines within the 2 ν1 + ν3 vibrational band were performed. Line strengths at room temperature and in a heated absorption cell over the temperature range of 420–970 K were obtained. The line strength values were in good agreement with simulations based on the values of the HITRAN 2004 database. The measurements also showed that water vapor transitions near 940 nm are suitable for sensitive temperature determination.

© 2005 Optical Society of America

OCIS Codes
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers

Original Manuscript: January 7, 2005
Revised Manuscript: April 18, 2005
Manuscript Accepted: April 22, 2005
Published: November 1, 2005

Heidi Cattaneo and Rolf Hernberg, "Detection of high-temperature water vapor at 940 nm with vertical-cavity surface-emitting lasers," Appl. Opt. 44, 6593-6598 (2005)

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