An Experimental Study of Light Scattering in Dense Random Media

该奖项包括一个项目，该项目重点研究光在无序材料中的传播，包括三个不同的实验成分。(1)采用低相干光外差技术对嵌入在高散射介质中的吸收结构进行成像。(2)将开发一种低相干态光子相关光谱技术，该技术应能在抑制多次散射分量的同时探测极低阶散射。(3)将进行脉冲飞行时间实验，以确定分析所有实验所需的传输和吸收平均自由程长度。这项工作的结果，除了有助于阐明散射在致密介质成像中的作用外，还在光学乳房摄影和层析成像领域具有潜在的应用前景。

This award covers a program which focuses on the study of light propagation in disordered materials with three distinct experimental components. (1) A low-coherence optical heterodyning technique will be used to image absorbing structure imbedded in a high-scattering medium. (2) A low-coherence photon correlation spectroscopic technique will be developed which should allow the detection of very low order scattering while suppressing the multiply scattered components. (3) A pulse-time-of-flight experiment will be implemented in order to determine the transport and absorption mean-free-path lengths needed for analysis of all the experiments. The results of this work, in addition to contributing to the elucidation of the role of scattering in imaging of dense media, have potential application in the fields of optical mammography and tomography.