Digital printing of hydrogel based diffractive optical elements

Zheng Xiong; Pranav Soman

doi:10.1117/12.2576893

5 March 2021 Digital printing of hydrogel based diffractive optical elements

Zheng Xiong, Pranav Soman

Proceedings Volume 11696, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV; 116960X (2021) https://doi.org/10.1117/12.2576893
Event: SPIE OPTO, 2021, Online Only

Abstract

Soft biomaterials have been proposed as outstanding candidates for soft micro-optics and photonics applications due to their optical transparency and unique biocompatibility. However, there is still lacking a facile strategy that can rapidly and biofriendly prototype biomaterials into micro-optics. Here, we present a novel method, digital micromirror device (DMD) based rapid photopatterning that can fabricate microfeatures on hydrogel within seconds. Several diffractive optics including transmission 1D/2D gratings, beam splitter, Fresnel Zone Plate lenses and computer-generated holograms were produced. The optical performance of these optical devices was characterized and indicates that this method enables prototyping user-defined micro-optics with high fidelity. This versatile photopatterning technique can therefore be a potential route to develop precise soft optical microfeatures using any photosensitive biomaterials.

Citation Download Citation

Zheng Xiong and Pranav Soman "Digital printing of hydrogel based diffractive optical elements", Proc. SPIE 11696, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV, 116960X (5 March 2021); https://doi.org/10.1117/12.2576893

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