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Thermal embossing of mid-infrared diffractive optical elements by use of a self-processing photopolymer master
Manuel Ornelas-Rodriguez1, Sergio Calixto, Yunlong Sheng
1Centro de Investigaciones en Optica, Gto, Mexico. mornelas@foton.cio.mx
Applied Optics
|August 3, 2002
Abstract:
Surface-relief transmissive diffractive elements were fabricated by embossing. The master was made by lithography with a self-developing photopolymer. The highly cross-linked structure exhibited by the polymer has made possible the direct replication by thermal embossing of polyethylene substrates. Fabricated elements are meant to work with mid-infrared radiation. The influence of some process variables, related to the performance of the diffractive elements, is analyzed.