期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep27057
关键词
-
资金
- project BabyLux [620996]
- project LaserLab Europe [654148]
We propose a comprehensive statistical approach describing the penetration depth of light in random media. The presented theory exploits the concept of probability density function f(z vertical bar rho, t) for the maximum depth reached by the photons that are eventually re-emitted from the surface of the medium at distance rho and time t. Analytical formulas for f, for the mean maximum depth < z(max)> and for the mean average depth < z > reached by the detected photons at the surface of a diffusive slab are derived within the framework of the diffusion approximation to the radiative transfer equation, both in the time domain and the continuous wave domain. Validation of the theory by means of comparisons with Monte Carlo simulations is also presented. The results are of interest for many research fields such as biomedical optics, advanced microscopy and disordered photonics.
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