Light guiding in biological tissue due to scattering

被引：103

作者：

Kienle, Alwin ^{[1
]}

Hibst, Raimund ^{[1
]}

机构：

[1] Inst Lasertechnol Med & Messtech, D-89081 Ulm, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.97.018104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For a description of light propagation in biological tissue it is usually assumed that tissue is a random medium. We report a pronounced light guiding effect in cubes of human dentin that cannot be described by this standard model. Monte Carlo simulations which consider the microstructure of dentin are performed and successfully compared to experiments. Contrary to explanations so far, we show that light guiding is due to scattering by the tissue's microstructure. Exploiting this concept, light can be guided in arbitrary directions or locations without involving reflections or wave effects.

引用

页数：4

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