Angular spectrum calculations for arbitrary focal length with a scaled convolution

作     者：Odate, Satoru Koike, Chiaki Toba, Hidemitsu Koike, Tetsuya Sugaya, Ayako Sugisaki, Katsumi Otaki, Katsura Uchikawa, Kiyoshi 

作者机构：Nikon Inc Core Technol Ctr Shinagawa Ku Tokyo 1408601 Japan 

出 版 物：《OPTICS EXPRESS》 (Opt. Express)

年 卷 期：2011年第19卷第15期

页      面：14268-14276页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：Computation methods Discrete Fourier transforms Fast Fourier transforms Fourier transforms Propagation methods 

摘      要：Nyquist sampling theorem in an image calculation with angular spectrum method restricts a propagation distance and a focal length of a lens. In order to avoid these restrictions, we studied suitable expressions for the image computations depending on their conditions. Additionally, a lateral scale in an observation plane can be magnified freely by using a scaled convolution in each expression. (C)2011 Optical Society of America