Angle and time-resolved studies of backscattering of light from biological tissues

Kwong Mow Yoo; Feng Liu; Robert R. Alfano

doi:10.1117/12.17635

1 June 1990 Angle and time-resolved studies of backscattering of light from biological tissues

Kwong Mow Yoo, Feng Liu, Robert R. Alfano

Proceedings Volume 1202, Laser-Tissue Interaction; (1990) https://doi.org/10.1117/12.17635
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

Temporal and angular profiles of backscattered pulses are introduced as a viable, novel and noninvasive technique to probe biological and medical materials. The optical properties of these materia's are quantitatively measured in terms of two scattering length scales the transport mean free path and the absorption length of the light. We show that these two scattering lengths can be directly determined from an analysis of the temporal and/or the angular profile of the backscattered pulse intensity. Weak localization of the photon are observed in the tissues. Experimental results for transient light backscattering from the human eye, normal and cancer lung and breast tissues, and tooth; from chicken heart; and leaf are presented.

Citation Download Citation

Kwong Mow Yoo, Feng Liu, and Robert R. Alfano "Angle and time-resolved studies of backscattering of light from biological tissues", Proc. SPIE 1202, Laser-Tissue Interaction, (1 June 1990); https://doi.org/10.1117/12.17635

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