Abstract

A new alternative and versatile method for the production of diffractive optical elements (DOEs) with up to four phase levels in AMTIR-1 (Ge33As12Se55) layers is demonstrated. The developed method proposes the use of the photosensitive properties of the layers and a specific in situ optical monitoring coupled with a reverse engineering algorithm to control the trigger points of the writing of the different diffractive patterns. Examples of various volume DOEs are presented.

© 2016 Optical Society of America

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Supplementary Material (1)

NameDescription
» Visualization 1: MP4 (567 KB)      Monitoring strategy of multilevel DOEs.

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