Investigation of Optical Scanning Holography & Real-Time Two-Pupil Processing

光学扫描全息术的研究

• 批准号: 8813115
• 负责人: Ting-Chung Poon
• 金额: $ 9.44万
• 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: 1989
• 资助国家: 美国
• 起止时间: 1989-05-01 至 1992-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8813115&HistoricalAwards=false
• 关键词: Investigation; Optical; Scanning; Holography; &amp

An acousto-optic approach to two-pupil synthesis in a pupil interaction regime has been proposed to synthesize bipolar point spread functions (PSFs) in incoherent image processing. The method consists of simultaneously scanning the input with the impulse responses corresponding to the two pupils which are offset in temporal frequency via acousto-optic diffraction. Subsequent heterodyne detection demodulates the synthesized PSF. It has been pointed out that, when the processor is operated in an out-of-focus mode, i.e., the scanning beam is not focused onto the input exactly, the applications of the processor can be extended to include holographic recording, somewhat reminiscent of side-looking radar. In the project proposed here, this novel approach to optical scanning holography is investigated. Also, the potential applications of the processor, while operated in the out-of-focus regime, are investigated further in the context of two-pupil processing. The potential significant applications of such a processor are in the area of optical holography for large-scale objects as well as that of television transmission of a hologram for two-dimensional objects. The results of this work could also lead to better 3-D information processing.

光瞳中双光瞳合成的声光方法 已经提出了相互作用机制来合成双极点 非相干图像处理中的扩展函数（PSF）。 述的方法 包括用脉冲同时扫描输入 对应于在时间上偏移的两个瞳孔的响应 频率通过声光衍射。 后继外差 检测器检测合成的PSF。 已经指出，当处理器在一种模式下操作时， 失焦模式，即，扫描光束不聚焦到 输入准确，处理器的应用可以扩展到 包括全息记录，有点像侧视 雷达 在这里提出的项目中，这种新颖的光学方法 研究了扫描全息术。 此外，潜在的应用 处理器在离焦状态下工作时， 在双瞳孔处理的背景下进一步研究。 的 这种处理器的潜在重要应用是在以下领域中 光学全息术的大规模的对象，以及 二维物体全息图的电视传输。 这项工作的结果也可能导致更好的三维信息 处理.