Share Email Print
cover

Proceedings Paper

Interferometric testing of the random phase objects (biological tissue models) by spatially modulated laser beam
Author(s): Vladimir P. Ryabukho; Anatoly A. Chaussky; Vladimir L. Khomutov; Valery V. Tuchin; Irina F. Terent'eva
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The diffraction of a laser beam with a spatial amplitude-phase modulation in the form of regular interference pattern behind random phase object as biological tissue model is studied. The interference effects of speckle-fields formed in diffraction zone are considered. The concept of interference of mutually shifted partially developed identical speckle fields has been employed. The evolution of visibility of average intensity fringes formed in scattered field has been studied for the objects with different statistical parameters modeling various cell structures including objects with an oscillating correlation coefficient of phase inhomogeneities. The behavior of the speckle field interference induced by the focused spatially-modulated laser beam diffraction on the random phase objects has been studied. A new measuring technique of statistical parameters of transparent or reflecting random phase objects is discussed. The technique is based on the usage of the probing beam with regular interference pattern, focused on a moving object, and on measurement of contrast of average intensity fringes, formed in scattering dynamic speckle-modulated field. Biomedical applications of the developed modeling and measuring technique are discussed.

Paper Details

Date Published: 9 February 1996
PDF: 18 pages
Proc. SPIE 2732, CIS Selected Papers: Coherence-Domain Methods in Biomedical Optics, (9 February 1996); doi: 10.1117/12.231689
Show Author Affiliations
Vladimir P. Ryabukho, Saratov State Univ., Saratov Branch of Mechanical Engineering Institute (Russia)
Anatoly A. Chaussky, Saratov State Univ., Saratov Branch of Mechanical Engineering Institute (Russia)
Vladimir L. Khomutov, Saratov State Univ., Saratov Branch of Mechanical Engineering Institute (Russia)
Valery V. Tuchin, Saratov State Univ., Saratov Branch of Mechanical Engineering Institute (Russia)
Irina F. Terent'eva, Saratov Branch of Mechanical Engineering Institute (Russia)


Published in SPIE Proceedings Vol. 2732:
CIS Selected Papers: Coherence-Domain Methods in Biomedical Optics
Valery V. Tuchin, Editor(s)

© SPIE. Terms of Use
Back to Top