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Proceedings Paper

Applications of self-processing holographic polymers: fabrication of diffractive optical elements
Author(s): Christelle Heinis; Laurent Bigue; Christiane Carre Morlet-Savary
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Paper Abstract

Computer generation of Diffractive Optical Elements is a method of considerable value since it allows an user encoding of complex optical functions (e.g. lens arrays). As a rule, Computer Generated Holograms (CGH's) are thin amplitude transmission elements. The duplication of such holograms on a photopolymerizable film leads to thick phase holograms with higher diffraction efficiencies. Indeed, the incident optical information is recorded as a modulation of the refractive index. A great advantage of polymerizable materials over other recording systems it that no chemical or heating post-treatment is required once the hologram was recorded. Swelling and shrinkage effects, that are a feature of wet development processes are, thus, avoided. The different methods of duplication taken into account are conventional holographic recording, contact copying and direct imaging of CGH's on polymer layers. Advantages and drawbacks of the three methods will be discussed. The characteristics of the photopolymer developed in the Mulhouse laboratory, such as low degree of optical aberrations and high diffraction efficiency, make it possible to achieve attractive and promising results.

Paper Details

Date Published: 17 September 1999
PDF: 7 pages
Proc. SPIE 3778, Gradient Index, Miniature, and Diffractive Optical Systems, (17 September 1999); doi: 10.1117/12.363749
Show Author Affiliations
Christelle Heinis, Ecole Nationale Superieure de Chimie (France)
Laurent Bigue, Ecole Superieure des Sciences Appliquees pour l'Ingenieur (France)
Christiane Carre Morlet-Savary, Ecole Nationale Superieure de Chimie (France)

Published in SPIE Proceedings Vol. 3778:
Gradient Index, Miniature, and Diffractive Optical Systems
Alan D. Kathman, Editor(s)

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