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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 25 — Dec. 6, 2010
  • pp: 26062–26067

IR spectroscopy of water vapor confined in nanoporous silica aerogel

Yu. N. Ponomarev, T. M. Petrova, A. M. Solodov, and A. A. Solodov  »View Author Affiliations

Optics Express, Vol. 18, Issue 25, pp. 26062-26067 (2010)

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The absorption spectrum of the water vapor, confined in the nanoporous silica aerogel, was measured within 5000-5600 cm−1 with the IFS 125 HR Fourier spectrometer. It has been shown, that tight confinement of the molecules by the nanoporous size leads to the strong lines broadening and shift. For water vapor lines, the HWHM of confined molecules are on the average 23 times larger than those for free molecules. The shift values are in the range from −0.03 cm−1 to 0.09 cm−1. Some spectral lines have negative shift. The data on the half-widths and center shifts for some strongest H2O lines have been presented.

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OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(300.3700) Spectroscopy : Linewidth
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(160.4236) Materials : Nanomaterials

ToC Category:

Original Manuscript: September 21, 2010
Revised Manuscript: October 17, 2010
Manuscript Accepted: November 11, 2010
Published: November 30, 2010

Yu. N. Ponomarev, T. M. Petrova, A. M. Solodov, and A. A. Solodov, "IR spectroscopy of water vapor confined in nanoporous silica aerogel," Opt. Express 18, 26062-26067 (2010)

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