Open AccessTransflective spin-orbital angular momentum conversion device by three-dimensional multilayer liquid crystalline materials
Author(s) -
Tiegang Lin,
Yaqin Zhou,
Yide Yuan,
Wenxing Fu,
Lishuang Yao,
Huihui Huang,
Fan Fan,
Shuangchun Wen
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.029244
Subject(s) - angular momentum , optics , polarization (electrochemistry) , liquid crystal , materials science , orbital angular momentum of light , angular momentum of light , orbital angular momentum multiplexing , optical vortex , optoelectronics , light beam , ray , physics , angular momentum coupling , total angular momentum quantum number , chemistry , quantum mechanics
In this paper, a liquid crystal device for generating transflected optical vortices with high efficiency based on Pancharatnam-Berry phase is devised and demonstrated experimentally. In the experiment, both photo-alignment material and polymer-alignment material are used for assembling three-dimensional distributed liquid crystal polymer and cholesteric liquid crystal. Through the interaction between the incident light and the device, both transmitted light and reflected light get spin-orbital angular momentum conversion. Moreover, the amount of transmitted and reflected beams can be modulated by the input polarization. In our proposal, the device is dual functional, low-cost and simple in manufacturing process.