Doppler velocimetry in a supersonic jet by use of frequency-modulated filtered light scattering
Optics Letters, Vol. 22, Issue 5, pp. 331-333 (1997)
http://dx.doi.org/10.1364/OL.22.000331
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Abstract
A new nonintrusive velocimetry diagnostic that combines the sensitivity of frequency-modulated (FM) absorption spectroscopy techniques and the spectral discrimination afforded by atomic-vapor absorption filters is presented. Doppler-shifted light from a FM Ti:sapphire laser scattered from a supersonic flow is imaged through a potassium-vapor cell and is detected by FM spectroscopy. The difference between the potassium resonance frequency and the laser frequency when the scattered light is in resonance is the flow-induced Doppler shift.
© 1997 Optical Society of America
[America ]
Citation
J. H. Grinstead, N. D. Finkelstein, and W. R. Lempert, "Doppler velocimetry in a supersonic jet by use of frequency-modulated filtered light scattering," Opt. Lett. 22, 331-333 (1997)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-22-5-331
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