EFFECT OF PUMP-LASER LINEWIDTH ON NOISE IN SINGLE-PULSE COHERENT ANTI-STOKES RAMAN SPECTROSCOPY TEMPERATURE MEASUREMENTS

Authors
  1. Barton, S.A.
  2. Garneau, J.M.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
When N2 is used as the probe molecule in a stable premixed propane-air flame near 2100K, the standard deviation in single-pulse coherent anti-Stokes Raman spectroscopy (CARS) temperature measurements is shown to decrease by 20% as the pump-laser linewidth increases from < or equal to 0.02 to about 0.7cm 1(-). This effect is shown to be independent of the signal level at the detector array over the range considered. An instrument function that is useful in CARS convolution calculations is also presented.
Date of publication
15 Mar 1987
Number of Pages
4
Reprinted from
Optics Letters, vol 12, no 7, 1987, p 486-488
DSTKIM No
87-03647
CANDIS No
52435
Format(s):
Hardcopy;Originator's fiche received by DSIS

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