Simulation Study on Polarization-Independent Microlens Arrays Utilizing Blue Phase Liquid Crystals with Spatially-Distributed Kerr Constants

Micromachines

Hung-Shan Chen²  Michael Chen²  Chia-Ming Chang²  Yu-Jen Wang²  Yi-Hsin Lin¹ 

[1] hotonics, National Chiao Tung University, Hsinchu 30010, Taiwan;

关键词: Kerr effect;    microlenses;    polarization independent;    liquid crystal;    blue phase;   

DOI  :  10.3390/mi5040859

来源: mdpi

【 摘 要 】

Polarization independent liquid crystal (LC) microlens arrays based on controlling the spatial distribution of the Kerr constants of blue phase LC are simulated. Each sub-lens with a parabolic distribution of Kerr constants results in a parabolic phase profile when a homogeneous electric field is applied. We evaluate the phase distribution under different applied voltages, and the focusing properties of the microlens arrays are simulated. We also calculate polarization dependency of the microlenses arrays at oblique incidence of light. The impact of this study is to provide polarizer-free, electrically tunable focusing microlens arrays with simple electrode design based on the Kerr effect.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.