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Proceedings Paper

Laser speckle and optical fiber sensors for micromovements monitoring in biotissues
Author(s): Valery V. Tuchin; Andrey V. Ampilogov; Alexander G. Bogoroditsky; Emmanuil M. Rabinovich; Vladimir P. Ryabukho; Sergey S. Ulyanov; Maksim E. V'yushkin
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Paper Abstract

In the paper diffraction of focused laser beam in thin blood-vessels (TBV) is discussed. Theoretical description of this process is given, a number of model experiments are carried out and TBV scattering in biological objects in vivo is analysed. Relations, establishing connection between scattered field and differential characteristics of blood flow in vessels, diameter of which are about or smaller than those of erythrocytes, are obtained. Analysis of theoretical model correctness is carried out. The paper also contains description of two modifications of a sensor for analysis of diff use scattering biological objects vibrations. The modifications are based on modified homodyne Michelson speckle-interferometer and laser self-excited oscillator with fiber-optical delay line.

Paper Details

Date Published: 1 August 1991
PDF: 12 pages
Proc. SPIE 1429, Holography, Interferometry, and Optical Pattern Recognition in Biomedicine, (1 August 1991); doi: 10.1117/12.44672
Show Author Affiliations
Valery V. Tuchin, Saratov State Univ. and Blagonravov Mechanical Engineering Institute (Russia)
Andrey V. Ampilogov, Saratov State Univ. and Blagonravov Mechanical Engineering Institute (Russia)
Alexander G. Bogoroditsky, Saratov State Univ. and Blagonravov Mechanical Engineering Institute (Russia)
Emmanuil M. Rabinovich, Saratov State Univ. and Blagonravov Mechanical Engineering Institute (Russia)
Vladimir P. Ryabukho, Saratov State Univ. and Blagonravov Mechanical Engineering Institute (Russia)
Sergey S. Ulyanov, Saratov State Univ. and Blagonravov Mechanical Engineering Institute (Russia)
Maksim E. V'yushkin, Saratov State Univ. and Blagonravov Mechanical Engineering Institute (Russia)


Published in SPIE Proceedings Vol. 1429:
Holography, Interferometry, and Optical Pattern Recognition in Biomedicine
Halina Podbielska, Editor(s)

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