Electrically tunable generation of vectorial vortex beams with micro-patterned liquid crystal structures

Autoren:Ji, Zhichao (Nankai University); Zhang, Xinzheng (Nankai University); Zhang, Yujiao (Nankai University); Wang, Zhenhua (Nankai University); Drevensek-Olenik, Irena (University of Ljubljana); Rupp, Romano; Li, Wei (Nankai University); Wu, Qiang (Nankai University); Xu, Jingjun (Nankai University)
Abstrakt:We develop a new method for smooth and continuous space-variant alignment of the liquid crystal medium in micro-patterned structures, which is based on a radial micro-structured pattern of polymeric ribbons exhibiting out-of-plane orientation with respect to the ITO-coated glass plates. Thanks to the broad range of electrical tunability of the optical retardation for the micro-patterned liquid crystal structures, transformation of the fundamental Gaussian beam into different types of specific beams, including generalized cylindrical vector beams, vortex beams, and vectorial vortex beams, is efficiently demonstrated.
Anzahl der Seiten:5
Journaltitel:Chinese Optics Letters
Peer reviewed:true
Digital Object Identifier (DOI):http://dx.doi.org/10.3788/COL201715.070501