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Proceedings Paper

Optics for diffuse photon density waves
Author(s): Maureen A. O'Leary; David A. Boas; Britton Chance; Arjun G. Yodh
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Paper Abstract

We perform experiments which confirm the existence of diffuse photon density waves in homogeneous diffusive media and show that these waves obey some simple principles of optics. In particular, experiments are done to show that Snell's law holds for waves moving across a boundary between media of different diffusional indices of refraction. Other experiments are performed which investigate the scattering of these waves from spherical objects, and simple models are presented to explain these results. Finally we demonstrate that it is possible to excite a fluorescent object with a diffuse photon density wave, creating a transduced diffuse photon density wave with a different wavelength. In summary we discuss the implications of these results for medical imaging.

Paper Details

Date Published: 14 September 1993
PDF: 6 pages
Proc. SPIE 1888, Photon Migration and Imaging in Random Media and Tissues, (14 September 1993); doi: 10.1117/12.154651
Show Author Affiliations
Maureen A. O'Leary, Univ. of Pennsylvania (United States)
David A. Boas, Univ. of Pennsylvania (United States)
Britton Chance, Univ. of Pennsylvania (United States)
Arjun G. Yodh, Univ. of Pennsylvania (United States)

Published in SPIE Proceedings Vol. 1888:
Photon Migration and Imaging in Random Media and Tissues
Britton Chance; Robert R. Alfano, Editor(s)

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