An Experimental Study of Light Scattering in Dense Random Media

密集随机介质中光散射的实验研究

• 批准号: 9601988
• 负责人: Paul Saulnier
• 金额: $ 11.51万
• 依托单位: Gustavus Adolphus College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-08-15 至 1999-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9601988&HistoricalAwards=false
• 关键词: Experimental; Study; Light; Scattering; Dense

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.

该奖项涵盖的项目侧重于通过三个不同的实验组件研究无序材料中的光传播。 (1) 低相干光学外差技术将用于对嵌入高散射介质中的吸收结构进行成像。 (2) 将开发一种低相干光子相关光谱技术，该技术应允许检测极低阶散射，同时抑制多重散射分量。 (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之外，还在光学乳腺X线摄影和断层摄影领域具有潜在的应用。