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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 8, Iss. 4 — Dec. 25, 2004
  • pp: 188–191

Photoacoustic Laser Doppler Velocimetrv Using the Self - mixing Effect of RF - excited CO2 Laser

Jong-Woon Choi, Moon-Jong You, Sung-Woong Choi, and Sam-Young Woo  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 8, Issue 4, pp. 188-191 (2004)


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Abstract

A new laser Doppler velocimeter employing a <TEX>$CO_2$</TEX> 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.

© 2004 Optical Society of Korea

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(140.3410) Lasers and laser optics : Laser resonators
(140.3470) Lasers and laser optics : Lasers, carbon dioxide
(230.7400) Optical devices : Waveguides, slab

History
Original Manuscript: August 18, 2004
Published: December 1, 2004

Citation
Jong-Woon Choi, Moon-Jong You, Sung-Woong Choi, and Sam-Young Woo, "Photoacoustic Laser Doppler Velocimetrv Using the Self - mixing Effect of RF - excited CO2 Laser," J. Opt. Soc. Korea 8, 188-191 (2004)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-8-4-188


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References

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