Noncontact diagnosis of tissue elasticity by means of measurement of Brillouin scattering

Takemi Hasegawa; Ryoichi Nakamura; Hiroshi Iseki

doi:10.1117/12.647050

22 February 2006 Noncontact diagnosis of tissue elasticity by means of measurement of Brillouin scattering

Takemi Hasegawa, Ryoichi Nakamura, Hiroshi Iseki

Proceedings Volume 6091, Optical Biopsy VI; 60910C (2006) https://doi.org/10.1117/12.647050
Event: SPIE BiOS, 2006, San Jose, California, United States

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.

Citation Download Citation

Takemi Hasegawa, Ryoichi Nakamura, and Hiroshi Iseki "Noncontact diagnosis of tissue elasticity by means of measurement of Brillouin scattering", Proc. SPIE 6091, Optical Biopsy VI, 60910C (22 February 2006); https://doi.org/10.1117/12.647050

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