Document Type



Physics (HMC)

Publication Date



We describe a novel frequency-domain photon migration instrument employing direct diode laser modulation and avalanche photodiode detection, which is capable of noninvasively determinating the optical properties of biological tissues in near real time. An infinite medium diffusion model was used to extract absorption and transport scattering coefficients from 300-kHz to 800-MHz photon-density wave phase data. Optical properties measured in tissue-simulating solutions at 670 nm agreed to within 10% of those expected.


First published in Optics Letters, vol. 19, no. 23 (December 1994), by the Optical Society of America.

Rights Information

©1994 Optical Society of America

Terms of Use & License Information

Terms of Use for work posted in Scholarship@Claremont.

Included in

Optics Commons