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Proceedings Paper

Noncontact diagnosis of tissue elasticity by means of measurement of Brillouin scattering
Author(s): Takemi Hasegawa; Ryoichi Nakamura; Hiroshi Iseki
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Paper Abstract

The capability of Brillouin spectroscopy for diagnosis of elasticity has been investigated. Although detection of weak signal under noise is a barrier to overcome, we have shown that the stimulated scattering can be enhanced by two orders of magnitude using stimulated thermal Brillouin scattering excited at a wavelength of 1550 nm where water has a moderate absorption of 12 cm-1. While thermal lens effect might cause excess noise in a certain experimental setup, we have shown it can be circumvented by polarization modulation technique.

Paper Details

Date Published: 22 February 2006
PDF: 7 pages
Proc. SPIE 6091, Optical Biopsy VI, 60910C (22 February 2006); doi: 10.1117/12.647050
Show Author Affiliations
Takemi Hasegawa, Sumitomo Electric Industries, Ltd. (Japan)
Ryoichi Nakamura, Tokyo Women's Medical Univ. (Japan)
Hiroshi Iseki, Tokyo Women's Medical Univ. (Japan)

Published in SPIE Proceedings Vol. 6091:
Optical Biopsy VI
Robert R. Alfano; Alvin Katz, Editor(s)

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