Finite element method for 3D optical modeling of liquid crystal on silicon spatial light modulator

Po-Ju Chen; Philip Engel; Adam Mazur; Clément Abélard; H. Paul Urbach

doi:10.1117/12.2544783

25 February 2020 Finite element method for 3D optical modeling of liquid crystal on silicon spatial light modulator

Po-Ju Chen, Philip Engel, Adam Mazur, Clément Abélard, H. Paul Urbach

Proceedings Volume 11303, Emerging Liquid Crystal Technologies XV; 1130308 (2020) https://doi.org/10.1117/12.2544783
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Accurate optical modeling for design and optimization of liquid crystal on silicon spatial light modulators (LCoS SLMs) is important for phase-related applications. Traditional matrix method cannot accurately predict the optical performance when the LC distribution is complex, therefore the rigorous finite element method (FEM) is preferred. However, the optical modeling of LCoS is a multidimensional problem, which is difficult to simulate with FEM. Here, we present the development of an improved FEM by combining the scattering matrix method with the domain decomposition method to reduce the computational burden for optical simulation of LCoS. Furthermore, a 2D simulation example with phase grating displayed on LCoS is presented and compared with experiment.

Citation Download Citation

Po-Ju Chen, Philip Engel, Adam Mazur, Clément Abélard, and H. Paul Urbach "Finite element method for 3D optical modeling of liquid crystal on silicon spatial light modulator", Proc. SPIE 11303, Emerging Liquid Crystal Technologies XV, 1130308 (25 February 2020); https://doi.org/10.1117/12.2544783

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