Temperature measurements by coherent Rayleigh scattering

Xingguo Pan, Peter F. Barker, A. Meschanov, J. H. Grinstead, Mikhail N. Shneider, Richard B. Miles

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


We demonstrate, for the first time to our knowledge, the utility of coherent Rayleigh scattering (CRS) for temperature measurements in low-density gases and weakly ionized plasmas by measuring the translational temperature of neutral argon in a glow discharge. By analysis of the near-Gaussian spectral profile of the CRS signal, we determine temperatures with an uncertainty of ≤3%. We also investigate the intensity range over which this simple Gaussian analysis can be used for temperature measurements and discuss its potential for gas diagnostics.

Original languageEnglish (US)
Pages (from-to)161-163
Number of pages3
JournalOptics Letters
Issue number3
StatePublished - Feb 1 2002

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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