Interdependence of volume shrinkage, spatial frequency, and mass transfer in relief gratings fabricated with self-processing photopolymers

Celine Croutxe-Barghorn; Daniel-Joseph Lougnot

doi:10.1117/12.323496

25 September 1998 Interdependence of volume shrinkage, spatial frequency, and mass transfer in relief gratings fabricated with self-processing photopolymers

Celine Croutxe-Barghorn, Daniel-Joseph Lougnot

Author Affiliations +

Proceedings Volume 3417, Photopolymer Device Physics, Chemistry, and Applications IV; (1998) https://doi.org/10.1117/12.323496
Event: Lasers and Materials in Industry and Opto-Contact Workshop, 1998, Quebec, Canada

Abstract

Local changes in thickness occurring upon controlled exposure to light of photopolymers capable of storing optical information were investigated. The image that developed as a relief in the photosensitive layer exhibited a complete self-processing character because it did not require any chemical post-treatment. Special attention was given to the effect of the gradient of chemical composition, the volume shrinkage, the gradient of surface free energy leading to mass transfer during the generation of low frequency relief gratings. This imaging techniques provides a high flexibility as regards height and shape of the generated relief. It allows fabrication of both diffractive and refractive optical elements that come increasingly into prominence as the micro-opto-electro-mechanical field expands.

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Celine Croutxe-Barghorn and Daniel-Joseph Lougnot "Interdependence of volume shrinkage, spatial frequency, and mass transfer in relief gratings fabricated with self-processing photopolymers", Proc. SPIE 3417, Photopolymer Device Physics, Chemistry, and Applications IV, (25 September 1998); https://doi.org/10.1117/12.323496

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