Focalized patterns generated at fractional Talbot distances of periodic phase gratings are discussed employing the Fresnel diffraction approach. Conventional and non-conventional focalizing cells are distinguished. The phase reliefs that generate patterns with maximum compression ratio, at a given distance, are described. Emphasis is done in the cases for which the 'resolution limit' of the focalized pattern is smaller than the normally expected one.

Date Published: 5 February 1996
PDF: 4 pages
Proc. SPIE 2730, Second Iberoamerican Meeting on Optics, (5 February 1996); doi: 10.1117/12.231030

Published in SPIE Proceedings Vol. 2730:
Second Iberoamerican Meeting on Optics
Daniel Malacara-Hernandez; Sofia E. Acosta-Ortiz; Ramon Rodriguez-Vera; Zacarias Malacara; Arquimedes A. Morales, Editor(s)