METHOD AND SYSTEM TO MEASURE TEMPERATURE OF GASES USING COHERENT ANTI-STOKES DOPPLER SPECTROSCOPY
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United States of America Patent
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Issued Date -
May 21, 2015
app pub date -
Nov 18, 2013
filing date -
Nov 18, 2013
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Abstract
A method of measuring a temperature of a noble gas in a chamber includes providing the noble gas in the chamber. The noble gas is characterized by a pressure and a temperature. The method also includes directing a first laser beam into the chamber and directing a second laser beam into the chamber. The first laser beam is characterized by a first frequency and the second laser beam is characterized by a second frequency. The method further includes converting at least a portion of the first laser beam and the second laser beam into a coherent anti-Stokes beam, measuring a Doppler broadening of the coherent anti-Stokes beam, and computing the temperature using the Doppler broadening.
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