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Proceedings Paper

Integrated edge-improved Talbot illuminator
Author(s): Changhe Zhou; Huaisheng Wang; Liren Liu
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Paper Abstract

Array illumination is always required for a large-size optical parallel processing system. Talbot array illuminator is highly interesting for a large-size array illumination with high efficiency, excellent uniformity, error-tolerance, and cheap massive fabrication. Theoretically, we derived a new method that can be used to reveal the simple relations between the phase levels of Talbot illuminator and the opening ratio (1/M) of the generated array. Experimentally, we demonstrated an integrated edge-improved Talbot array illuminator. We fabricated one piece of Talbot illuminator with the period of d equals 200 micrometers , opening ratio of 1/2, and binary-phase (0,(pi) ) modulation. One cuboid piece of K9 glass with two-side surfaces coated for high reflection is glued with the Talbot illuminator. The integrated piece is shown to improve the edge uniformity of array illumination at the output plane. Due to wide applications of array illumination, our proposed methods are interesting for miniature of integrated microoptical processing system.

Paper Details

Date Published: 1 October 1999
PDF: 8 pages
Proc. SPIE 3805, Photonic Devices and Algorithms for Computing, (1 October 1999); doi: 10.1117/12.363981
Show Author Affiliations
Changhe Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Huaisheng Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 3805:
Photonic Devices and Algorithms for Computing
Khan M. Iftekharuddin; Abdul Ahad Sami Awwal, Editor(s)

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