A Review of Two-Dimensional Liquid Crystal Polarization Gratings

Crystals

Dan Luo¹  Kai Zuo²  Yue Shi² 

[1] Department of Electrical and Electronic Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road., Xili, Nanshan District, Shenzhen 518055, China;School of Physical Science and Technology, Ningbo University, No. 818 Fenghua Road, Jiangbei District, Ningbo 315211, China;

关键词: two-dimensional;    polarization grating;    liquid crystal;    diffraction;    polarization sensitivity;   

DOI  :  10.3390/cryst11091015

来源: DOAJ

【 摘 要 】

In the past two decades, polarization gratings (PGs) have attracted intensive attention due to the high-efficient diffraction and polarization selectivity properties. On one hand, the one-dimensional (1D) PGs have been investigated widely and adapted to various applications. On the other hand, optical signal manipulation stimulates the development of multibeam optical devices. Therefore, the development of two-dimensional (2D) PGs is in demand. This review summarizes the research progress of 2D PGs. Different designs and fabrication methods are summarized, including assembling two 1D polarization patterns, a 2D holographic lithography by polarization interference and a micro-pixelated electric field stimulated 2D liquid crystal (LC) structure. Both experiments and analyses are included. The design strategy, diffraction property, merits and demerits are discussed and summarized for the different methods.

【 授权许可】

Unknown