Optical Scanning Holography

光学扫描全息术

• 批准号: 9319211
• 负责人: Ting-Chung Poon
• 金额: $ 19.7万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9319211&HistoricalAwards=false
• 关键词: Optical; Scanning; Holography

9319211 Poon This proposal requests for a research program on the study of the basic and applied aspects of scanning holography and 3-D image coding. The projects is a continuation of the principal investigator's previous work along the line of real-time holographic recording technique using optical heterodyne scanning. Briefly, in the technique, two optical beams of different temporal frequencies are use to scan an object to extract the holographic information for the object. In the present proposed research we investigate and compare the coherent, partial coherent and incoherent nature of the scanning holographic information reduction techniques, 3-D coding and multiple-exposure holography are explored and extended to multiple holographic information of the object simultaneously. Advantages of multiple-beam scanning includes real-time operation and large multiplexing capability. The integration of an electron-beam-addressed spatial light modulator for coherent reconstruction with the scanning holographic recording system also is investigated in the context of real time holography in video rate. The results of the proposed work could lead to better 3-D information processing and coding such as in the areas of real-time 3-D image processing, microscopy, data storage and acquisition and optical remote sensing.

9319211 Poon 该提案要求开展一项研究计划，研究扫描全息术和 3-D 图像编码的基础和应用方面。 该项目是主要研究者之前沿着使用光学外差扫描的实时全息记录技术的工作的延续。 简而言之，在该技术中，使用不同时间频率的两束光束来扫描物体以提取物体的全息信息。 在目前提出的研究中，我们研究并比较了扫描全息信息还原技术的相干、部分相干和不相干性质，探索了 3D 编码和多重曝光全息术，并将其扩展到同时对象的多个全息信息。 多光束扫描的优点包括实时操作和大复用能力。在视频速率实时全息的背景下，还研究了用于相干重建的电子束寻址空间光调制器与扫描全息记录系统的集成。 拟议工作的结果可以带来更好的 3D 信息处理和编码，例如实时 3D 图像处理、显微镜、数据存储和采集以及光学遥感领域。