Abstract

A general analysis of the image fill-factor influence on Zernike-type phase contrast filtering is presented. We define image fill factor as the ratio of the object support area over the illuminating area. We first consider binary-phase objects and then generalize to arbitrarily quantized and continuous-phase objects. Numerical simulations are presented for binary- and quadratic-phase objects, where the contrast of the output image is evaluated as a function of the image fill factor, image phase variations, and filter phase. The results obtained show that the image fill factor can significantly modify the contrast and irradiance of the contrasted image.

© 2002 Optical Society of America

Comment: influence of illuminating beyond the object support on Zernike-type phase contrast filtering

Jesper Glückstad, Vincent R. Daria, and René L. Eriksen
Appl. Opt. 42(5) 792-793 (2003)

Reply to comment: influence of illuminating beyond the object support on Zernike-type phase contrast filtering

David Sánchez-de-la-Llave, Marcelo D. Iturbe Castillo, Luis Olivos Pérez, and Roberto Cantú Hernández
Appl. Opt. 42(5) 794-797 (2003)

Reverse phase contrast: an experimental demonstration

Paul C. Mogensen and Jesper Glückstad
Appl. Opt. 41(11) 2103-2110 (2002)

Implementing the generalized phase-contrast method in a planar-integrated micro-optics platform

Vincent Daria, Jesper Glückstad, Paul C. Mogensen, René L. Eriksen, and Stefan Sinzinger
Opt. Lett. 27(11) 945-947 (2002)

Imaging phase objects with square-root, Foucault, and Hoffman real filters: a comparison

Arkadiusz Sagan, Slawomir Nowicki, Ryszard Buczynski, Marek Kowalczyk, and Tomasz Szoplik
Appl. Opt. 42(29) 5816-5824 (2003)