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

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

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.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics

Keywords

  • thermometry, OH, hydroxyl, polarization spectroscopy, laser-induced fluorescence
Original languageEnglish
Title of host publicationJournal Of Raman Spectroscopy
PublisherJohn Wiley & Sons
Pages828-835
Volume40
Publication statusPublished - 2009
Publication categoryResearch
Peer-reviewedYes
Event7th European Conference on Nonlinear Optical Spectroscopy (ECNOS)/1st European Conference on CARS Microscopy - Igls, Austria
Duration: 2008 May 252008 May 27

Publication series

Name
Number7
Volume40
ISSN (Print)0377-0486

Conference

Conference7th European Conference on Nonlinear Optical Spectroscopy (ECNOS)/1st European Conference on CARS Microscopy
CountryAustria
CityIgls
Period2008/05/252008/05/27