Wavefront Synthesis and Retrieval: Digital Diffractive Ele- ments and Speckle Noise Modelling, Analysis, and Removal

波前合成和检索：数字衍射元件和散斑噪声建模、分析和去除

• 批准号: 8419997
• 负责人: Jan Allebach
• 金额: $ 42万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-08-01 至 1989-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8419997&HistoricalAwards=false
• 关键词: Wavefront; Synthesis; Retrieval; Digital; Diffractive

The research is directed toward novel approaches to wavefront synthesis and reconstruction by means of digital diffractive elements to produce very high performance computer-generated holograms with a minimum of speckle noise. A hologram is a synthetically reconstructed image generated by computer processing of laser-generated views of an object. Holograms are being used in commercial applications such as nondestructive testing, heads-up displays, information storage, and testing of aspherical optics. The list of applications would grow appreciably if improved, reliable holograms and better methods of generation were available. In this research effort, the principal investigators are utilizing very high resolution digital diffractive elements (DDE) to perform wavefront synthesis and manipulation to do speckle suppression and make high performance computer-generated holograms.

该研究是针对新的方法来波前合成 并通过数字衍射元件进行重建， 非常高性能的计算机生成的全息图， 斑点噪声 全息图是一种综合再现的图像 通过计算机处理对象的激光生成视图而生成。 全息图正被用于商业应用， 无损检测、平视显示器、信息存储和 非球面光学的测试。 应用程序的列表将增加 如果改进，可靠的全息图和更好的方法， 一代可用。 在这项研究中，校长 研究人员正在利用非常高分辨率的数字衍射 元件（DDE）执行波前合成和操纵， 散斑抑制和高性能计算机生成 全息图