Open AccessPolarization-insensitive tunable terahertz polarization rotator
Author(s) -
Shaoxian Li,
Minggui Wei,
Xi Feng,
Qingwei Wang,
Quan Xu,
Xu Yi,
Liyuan Liu,
Chunmei Ouyang,
Wentao Zhang,
Cong Hu,
Xueqian Zhang,
Jiaguang Han,
Weili Zhang
Publication year - 2019
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.27.016966
Subject(s) - polarization rotator , optics , polarization (electrochemistry) , terahertz radiation , materials science , circular polarization , dielectric , ray , brewster's angle , radial polarization , polarizer , physics , optoelectronics , birefringence , laser beams , laser , chemistry , brewster , laser beam quality , microstrip
A rotation-angle variable polarization rotator is proposed and demonstrated using an all-dielectric metasurface doublet. Such a transmissive device can conveniently rotate the polarization of incident light by any desired angles by mechanically changing the relative angle of the double metasurface layers regardless of the incident state of polarization. Under certain conditions the device acts as a full phase modulator for the circularly polarized incident wave. Hence, it has a promising application in polarization and phase control.