Effects of multiple-passage probabilities on fluorescent signals from biological media.
- 1 July 1997
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 36 (19) , 4613-4619
- https://doi.org/10.1364/ao.36.004613
Abstract
By applying a random-walk model for photon migration, we find an exact expression for fluorescent signals emitted from a homogeneous, optically turbid medium containing a single fluorescent mass. In contrast to diffusion-theory-based models, our analysis accounts for multiple photon passages through the fluorophore sites and allows for a variable degree of fluorescent absorptivity. We particularly discuss effects on the amplitudes and phase shifts of frequency-domain fluorescent signals.Keywords
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