Chinese Optics Letters, 2017, 15 (7): 070501, Published Online: Jul. 20, 2018   

Electrically tunable generation of vectorial vortex beams with micro-patterned liquid crystal structures Download: 1166次

Author Affiliations
1 The MOE Key Laboratory of Weak-Light Nonlinear Photonics, and TEDA Institute of Applied Physics and School of Physics, Nankai University, Tianjin 300457, China
2 Faculty of Mathematics and Physics, University of Ljubljana and Department of Complex Matter, J. Stefan Institute, Ljubljana SI1000, Slovenia
3 Faculty of Physics, Vienna University, Wien A-1090, Austria
4 Synergetic Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
Abstract
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.

Zhichao Ji, Xinzheng Zhang, Yujiao Zhang, Zhenhua Wang, Irena Drevensek-Olenik, Romano Rupp, Wei Li, Qiang Wu, Jingjun Xu. Electrically tunable generation of vectorial vortex beams with micro-patterned liquid crystal structures[J]. Chinese Optics Letters, 2017, 15(7): 070501.

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