Angular spectrum calculations for arbitrary focal length with a scaled convolution

Autor:	Satoru Odate, Tetsuya Koike, Katsumi Sugisaki, Ayako Sugaya, Chiaki Koike, Katsura Otaki, Kiyoshi Uchikawa, Hidemitsu Toba
Rok vydání:	2011
Předmět:	Physics business.industry Plane (geometry) Fast Fourier transform Atomic and Molecular Physics and Optics law.invention Convolution Lens (optics) Angular spectrum method symbols.namesake Optics Fourier transform law symbols Focal length Nyquist–Shannon sampling theorem business
Zdroj:	Optics Express. 19:14268
ISSN:	1094-4087
DOI:	10.1364/oe.19.014268
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2277589913b999cf58779fb77d0ef6f https://doi.org/10.1364/oe.19.014268 Zobrazit plný text záznamu