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Proceedings Paper

Acousto-optical imaging of multiply scattering medium
Author(s): Aleksandr P. Solov'ev; Mikhail I. Perchenko; Yurii P. Sinichkin; Olga V. Zyuryukina
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Paper Abstract

On the basis of the suggested model of coherent-optical interaction of laser radiation with ultrasonic wave, the influence of geometry of experiment on the amplitude and phase characteristics of ac photo-detector current at the ultrasound frequency was experimentally and theoretically analyzed. For intermediate scattering regime where the ballistic and low-step scattered light components are measurable their contributions to ac photocurrent were separated by experimental data processing. With a use of theoretically predicted and experimentally confirmed optimal conditions of the measurement, the images of the absorbing half-plane were reconstructed in weak scattering media with use of the distributions of the ac amplitude of the current at 3 MHz ultrasound frequency and dc current. The possibilities of the acousto-optical imaging of multiply scattering medium were discussed on the basis of the results obtained after comparison with traditional measurements of dc photocurrent distributions.

Paper Details

Date Published: 15 June 2001
PDF: 8 pages
Proc. SPIE 4256, Biomedical Optoacoustics II, (15 June 2001); doi: 10.1117/12.429310
Show Author Affiliations
Aleksandr P. Solov'ev, Saratov State Univ. (Russia)
Mikhail I. Perchenko, Saratov State Univ. (Russia)
Yurii P. Sinichkin, Saratov State Univ. (Russia)
Olga V. Zyuryukina, Saratov State Univ. (Russia)

Published in SPIE Proceedings Vol. 4256:
Biomedical Optoacoustics II
Alexander A. Oraevsky, Editor(s)

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