Häusler G, Herrmann J M, Kummer R, Lindner M W
Opt Lett. 1996 Jul 15;21(14):1087-9. doi: 10.1364/ol.21.001087.
An optical method is introduced for observation of temporally and spatially resolved frames that show how light propagates in diffusely scattering materials. The method permits videos with 100-fs resolution in time to be produced. The method utilizes short-coherence interferometry. The source of information is the speckle contrast. The temporal and spatial evolution of the multiple scattering process is demonstrated for several biological and industrial samples. A major objective of the method is to investigate the conditions for optimum coherence and optimum apertures to achieve high resolution in the short-coherence interferometry. One important result is that during the propagation a sharp photon horizon evolves, which is useful for the morphological analysis of volume scatterers.
介绍了一种光学方法，用于观察显示光在漫散射材料中传播方式的时间和空间分辨帧。该方法能够制作时间分辨率为100飞秒的视频。该方法利用了短相干干涉测量法。信息来源是散斑对比度。展示了几种生物和工业样品的多重散射过程的时间和空间演变。该方法的一个主要目标是研究在短相干干涉测量法中实现高分辨率的最佳相干条件和最佳孔径。一个重要结果是，在传播过程中会形成一个清晰的光子视界，这对体积散射体的形态分析很有用。
