Diffraction shift of an image

Citation
Ig. Pal'Chikova et Sg. Rautian, Diffraction shift of an image, OPT SPECTRO, 87(3), 1999, pp. 472-481
Citations number
19
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
OPTICS AND SPECTROSCOPY
ISSN journal
0030400X → ACNP
Volume
87
Issue
3
Year of publication
1999
Pages
472 - 481
Database
ISI
SICI code
0030-400X(199909)87:3<472:DSOAI>2.0.ZU;2-X
Abstract
The influence of diffraction on the location of the focus of a converging s pherical light wave is studied for various Fresnel numbers and aperture sha pes. A simple physical interpretation of diffraction focusing is given. The concept of the diffraction optical power of an aperture is discussed. Simp le and accurate enough formulas for the diffraction shift of an image are p roposed.