Effects of multiple-passage probabilities on fluorescent signals from biological media

被引:23
作者
Gandjbakhche, AH [1 ]
Bonner, RF [1 ]
Nossal, R [1 ]
Weiss, GH [1 ]
机构
[1] NIH,NATL CTR RES RESOURCES,BIOMED ENGN & INSTRUMENTAT PROGRAM,BETHESDA,MD 20892
来源
APPLIED OPTICS | 1997年 / 36卷 / 19期
关键词
D O I
10.1364/AO.36.004613
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (C) 1997 Optical Society of America.
引用
收藏
页码:4613 / 4619
页数:9
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