Complex Diffractive Optical Elements Stored in Photopolymers

We study the recording of complex diffractive elements, such as achromatic lenses, fork gratings or axicons. Using a 3-D diffusion model, previously validated, we are able to predict the behavior of photopolymer during recording. The experimental recording of these complex elements is possible thanks to a new generation spatial light modulator capable of generating periodic and aperiodic profiles. Both experimental and theoretical are analyzed and compared. The results show not only the good response of theoretical model to predict the behavior of the materials, but also the viability of photopolymers to store these kind of elements.This work was supported by The Ministerio de Ciencia, Innovación y Universidades (Spain) under project FIS2017-82919-R/(MINECO/AE/FEDER, UE). R.F. and M.M.-V. acknowledge the financial support by the Generalitat Valenciana (Spain) under grants APOSTD/2018/084 and CDEIGENT/2018/024, respectively