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Appl Opt. 1998 Jul 10;37(20):4366-73.

White-light-modified Talbot array illuminator with a variable density of light spots.

Abstract

A flexible array illuminator, comprising only two conventional optical elements, with a variable density of bright white-light spots is presented. The key to our method is to obtain with a single diffractive lens an achromatic version of different fractional Talbot images, produced by free-space propagation, of the amplitude distribution at the back focal plane of a periodic refractive microlens array under a broadband point-source illumination. Some experimental results of our optical procedure are also shown.

PMID:
18285886
[PubMed]
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