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OH-thermometry using laser polarization spectroscopy and laser-induced fluorescence spectroscopy in the OH A-X (1,0) band

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Author

Summary, in English

Laser-induced fluorescence (LIF) and polarization spectroscopy (PS) is used for OH-thermometry utilizing the off-diagonal A-X (1,0) band. Both techniques are used simultaneously in order to allow a comparison of the results. For deriving temperature information from the spectra, three methods are employed: (1) a contour fit method comparing experimental and calculated spectra, (2) spectral fitting of a single highly resolved spectral line and (3) a two-line intensity ratio approach. In general, both spectroscopic techniques gave similar results. The high-resolution approach (2) did not deliver reasonable results in our experiments. The most accurate but also most time consuming method was the contour fit (1). For future two-dimensional temperature measurements, the 2-line-method (3) was identified to be the method of choice. The present study contains, to the best of our knowledge, the first polarization spectroscopic study in the A-X (1,0) band of OH. Copyright (C) 2009 John Wiley & Sons, Ltd.

Department/s

Publishing year

2009

Language

English

Pages

828-835

Publication/Series

Journal Of Raman Spectroscopy

Volume

40

Issue

7

Document type

Conference paper

Publisher

John Wiley & Sons Inc.

Topic

  • Atom and Molecular Physics and Optics

Keywords

  • thermometry
  • OH
  • hydroxyl
  • polarization spectroscopy
  • laser-induced fluorescence

Conference name

7th European Conference on Nonlinear Optical Spectroscopy (ECNOS)/1st European Conference on CARS Microscopy

Conference date

2008-05-25 - 2008-05-27

Conference place

Igls, Austria

Status

Published

ISBN/ISSN/Other

  • ISSN: 0377-0486