Monitoring biomedical motion and flow by means of coherent light fluctuations

J. David Briers

doi:10.1117/12.231672

9 February 1996 Monitoring biomedical motion and flow by means of coherent light fluctuations

J. David Briers

Proceedings Volume 2732, CIS Selected Papers: Coherence-Domain Methods in Biomedical Optics; (1996) https://doi.org/10.1117/12.231672
Event: CIS Selected Papers: Coherence Domain Methods in Biomedical Optics, 1995, Saratov, Russian Federation

Abstract

Laser light, when scattered from a moving object or fluid, fluctuates in intensity. These fluctuations can yield information about the velocity of the scatterers involved. Two approaches have been used over the past twenty years or so. The techniques of photon correlation spectroscopy and laser Doppler effectively measure the frequency shift that occurs when light is scattered from moving objects. Regarding the phenomenon as a time-varying speckle pattern, however, opens up several other measurement possibilities. This review paper describes some recent biomedical applications of these techniques.

Citation Download Citation

J. David Briers "Monitoring biomedical motion and flow by means of coherent light fluctuations", Proc. SPIE 2732, CIS Selected Papers: Coherence-Domain Methods in Biomedical Optics, (9 February 1996); https://doi.org/10.1117/12.231672

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