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Proceedings Paper

Laser Doppler velocimetry using the photoacoustic effect of RF-excited CO2 laser
Author(s): Jong-woon Choi
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Paper Abstract

A new laser Doppler velocimeter employing an RF-excited CO2 laser has been developed by using its photoacoustic effect. A change in the pressure of a discharge, induced by mixing of a returned wave with an originally existing wave inside the cavity, is employed to detect the Doppler frequency shift. We found that a Doppler frequency shift as small as 50 kHz was detected, and also a good linear relationship between the velocity and the Doppler frequency shift was obtained.

Paper Details

Date Published: 22 February 2006
PDF: 5 pages
Proc. SPIE 6101, Laser Beam Control and Applications, 61010F (22 February 2006); doi: 10.1117/12.650536
Show Author Affiliations
Jong-woon Choi, Honam Univ. (South Korea)

Published in SPIE Proceedings Vol. 6101:
Laser Beam Control and Applications
Steven J. Davis; Alexis V. Kudryashov; Adolf Giesen; Detlef Nickel; Michael C. Heaven; Alan H. Paxton; Vladimir S. Ilchenko; J. Thomas Schriempf, Editor(s)

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