Share Email Print

Optical Engineering

Fractional Talbot effect for periodic microlens arrays
Author(s): Brigitte Besold; Norbert Lindlein
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

It is well known that the foci of a periodic array of microlenses are reproduced and multiplied in the fractional Talbot planes. But the intensity between the multiplied foci varies in general in one period, especially if the light in the spacing between the lenses is not absorbed but transmitted. Additionally, in the case of microlenses with a high numerical aperture the parabolic approximation or Fresnel diffraction, which is normally used to explain the Talbot effect, is no longer valid. A theoretical explanation and numerical simulations are given together with experimental results.

Paper Details

Date Published: 1 April 1997
PDF: 7 pages
Opt. Eng. 36(4) doi: 10.1117/1.601301
Published in: Optical Engineering Volume 36, Issue 4
Show Author Affiliations
Brigitte Besold, Univ. Erlangen-Nurnberg (Germany)
Norbert Lindlein, Univ. Erlangen-Nuernberg (Germany)

© SPIE. Terms of Use
Back to Top