Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
권호 표지
DOI QR코드

DOI QR Code

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

  • Choi, Jong-Woon (Department of Information and Communication, Honam University) ;
  • You, Moon-Jong (Department of Information and Communication, Honam University) ;
  • Choi, Sung-Woong (Radio Resources Research Team, Electronics and Telecommunication Research Institute) ;
  • Woo, Sam-Young (Mass & Force group, Division of Physical Metrology, Korea Research Institute of Standards and Science)
  • Received : 2004.08.18
  • Published : 2004.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

A new laser Doppler velocimeter employing a $CO_2$ 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.

Keywords

References

  1. M.J. Rudd, 'A laser Doppler velocimeter employing the laser as a mixer-oscillator,' J. Physics E-Scientific Instruments, 1, 723-726, 1968 https://doi.org/10.1088/0022-3735/1/7/305
  2. Churnside J.H., 'Laser Doppler velocimetry by modulating a $CO_2$ laser with backscattered light,' Appl. Opt., vol. 23, pp. 61-66, 1984 https://doi.org/10.1364/AO.23.000061
  3. S. Shinohara, A. Mochizuki, H. Yoshida, and M. Sumi, 'Laser Doppler velocimeter using the self-mixing effect of a semiconductor laser diode,' Appl. Opt. 25, 1417-1419, 1986 https://doi.org/10.1364/AO.25.001417
  4. J.W. Choi, Y. P. Kim, and Y. M. Kim, 'Optogalvanic laser Doppler velocimetry using the self-mixing effect of $CO_2$ laser,' vol. 68, no. 12, 4623-4624, Review of Scientific Instruments, Dec., 1997 https://doi.org/10.1063/1.1148445
  5. 5. H. W. Jentink, F. F. M. de Mul, H. E. Suichies, J. G. Aarnoudse, and J. Greve, 'Smal laser Doppler velocimeter based on the self-mixing effect in a diode laser,' Appl. Phys. vol. 27, no. 2, 379, 1988 https://doi.org/10.1364/AO.27.000379
  6. Andrew C. Tam, Rev. of Modern Physics, vol. 58, no. 2, April, 1986 https://doi.org/10.1103/RevModPhys.58.381
  7. M. Villagran-Muniz, et. al., 'Photoacoustic methods for real-time measurement of laser beam diameter and position, and for laser cavity alignment,' Rev. Sci. Instrum. 66 (6), June, 1995 https://doi.org/10.1063/1.1145461
  8. A. C. tam. In, 'Ultrasensitive Laser Spectroscopy,' edited by D. S. Kliger, Academic, New York, 1983
  9. B. M. Watrasiewicz, M. J. Rudd, 'Laser Doppler Measurement,' Butterworths, London, 1976
  10. Jitendra P. Gupta and Rajendra N. Sachdev, 'Theoretical model of an optoacoustic detector,' Appl. Phys. Lett. 36(12), 960, 1980 https://doi.org/10.1063/1.91382
  11. Kirk H. Michaelian, 'Photoacoustic Infrared Spectroscopy,' Wiley Interscience, 168, 2003
  12. A. Thony and M. W. Sigrist, 'New developments in $CO_2$-laser photoacoustic monitoring of trace gases,' Infrared Phys. Technol. vol. 36, no. 2, 585, 1995 https://doi.org/10.1016/1350-4495(94)00046-N
  13. L. Scalise and N. Paone, 'Laser Doppler vibrometry based on self-mixing effect,' Opt. Lasers Eng., vol. 38, pp. 1173-1184, 2002 https://doi.org/10.1016/S0143-8166(02)00009-X
  14. Liu G., Zhang S., Zhu J., and Li Y., 'Theoretical and experimental study of intensity branch phenomena in self-mixing interference in He-Ne laser,' Opt. Comm. 221, 387, 2003 https://doi.org/10.1016/S0030-4018(03)01495-0