Muskens O L, Lagendijk A
Center for Nanophotonics, FOM Institute for Atomic and Molecular Physics AMOLF, Kruislaan 407,1098 SJ Amsterdam, The Netherlands.
Opt Lett. 2009 Feb 15;34(4):395-7. doi: 10.1364/ol.34.000395.
We present a broadband technique for the measurement of diffuse light transport through opaque scattering media. Using the spectral correlations introduced by a scattering medium onto a white-light supercontinuum spectrum, the diffusion constant of light is determined over a wide spectral range in the visible and the near IR. Independent broadband measurements of both the transport mean free path and the diffusion constant are used to calculate the spectral dependence of the energy velocity in a porous GaP slab. Broadband correlation spectroscopy is found to be an excellent tool for the characterization of random scattering media.
我们提出了一种用于测量漫射光通过不透明散射介质传输的宽带技术。利用散射介质引入到白光超连续谱上的光谱相关性，在可见光和近红外的宽光谱范围内确定光的扩散常数。对传输平均自由程和扩散常数进行独立的宽带测量，以计算多孔GaP平板中能量速度的光谱依赖性。发现宽带相关光谱是表征随机散射介质的一种出色工具。
