Johnson P M, Faez Sanli, Lagendijk Ad
FOM Institute for Atomic and Molecular Physics AMOLF, Kruislaan 407 Amsterdam, The Netherlands.
Opt Express. 2008 May 12;16(10):7435-46. doi: 10.1364/oe.16.007435.
We demonstrate a method for fully characterizing diffuse transport of light in a statistically anisotropic opaque material. Our technique provides a simple means of determining all parameters governing anisotropic diffusion. Anisotropy in the diffusion constant, the mean free path, and the extrapolation length are, for the first time, determined independently. These results show that the anisotropic diffusion model is effective for modeling transport in anisotropic samples, providing that the light is allowed to travel several times the transport mean free path from the source.
我们展示了一种用于全面表征光在统计各向异性不透明材料中漫射传输的方法。我们的技术提供了一种确定所有控制各向异性扩散参数的简单手段。扩散常数、平均自由程和外推长度中的各向异性首次被独立确定。这些结果表明，只要光从光源传播的距离是传输平均自由程的几倍，各向异性扩散模型对于模拟各向异性样品中的传输是有效的。
