Optimization of refractive liquid crystal lenses using an efficient multigrid simulation

Optics Express
Harry MiltonJohn Clamp

Abstract

A multigrid computational model has been developed to assess the performance of refractive liquid crystal lenses, which is up to 40 times faster than previous techniques. Using this model, the optimum geometries producing an ideal parabolic voltage distribution were deduced for refractive liquid crystal lenses with diameters from 1 to 9 mm. The ratio of insulation thickness to lens diameter was determined to be 1:2 for small diameter lenses, tending to 1:3 for larger lenses. The model is used to propose a new method of lens operation with lower operating voltages needed to induce specific optical powers. The operating voltages are calculated for the induction of optical powers between + 1.00 D and + 3.00 D in a 3 mm diameter lens, with the speed of the simulation facilitating the optimization of the refractive index profile. We demonstrate that the relationship between additional applied voltage and optical power is approximately linear for optical powers under + 3.00 D. The versatility of the computational simulation has also been demonstrated by modeling of in-plane electrode liquid crystal devices.

References

Apr 7, 2006·Proceedings of the National Academy of Sciences of the United States of America·Guoqiang LiNasser Peyghambarian
Apr 26, 1999·Optics Express·A NaumovF Vladimirov
Nov 13, 2006·Optics Express·Hongwen Ren, Shin-Tson Wu

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Citations

Apr 4, 2015·Optics Express·Amir HassanfirooziHan-Ping D Shieh
Jan 23, 2020·Physical Review. E·Paul A BrownDaniel Gunlycke
Apr 11, 2014·Optics Express·Harry E MiltonHelen F Gleeson
May 4, 2016·Optics Express·S KaurH F Gleeson
Jul 28, 2016·Optics Express·Che-Ju HsuChi-Yen Huang

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