Open AccessUltrathin flexible terahertz polarization converter based on metasurfaces
Author(s) -
Wei-Cheng Mo,
Xuli Wei,
Kejia Wang,
Li Yao,
Jinsong Liu
Publication year - 2016
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.24.013621
Subject(s) - terahertz radiation , optics , polarization (electrochemistry) , converters , terahertz gap , terahertz spectroscopy and technology , beam (structure) , materials science , optoelectronics , circular polarization , terahertz metamaterials , physics , far infrared laser , microstrip , laser , voltage , chemistry , quantum mechanics
We present a method to design and fabricate a kind of converters based on flexible metasurfaces which can change the polarization state of an incident terahertz beam. The metasurface consists of a two-dimensional array of rectangular metallic antennas that can abruptly change the phase of the incoming terahertz beam. Experimentally demonstrated half-wave plates generate 0.1 THz beam with a π/2 polarization rotation. By slightly changing the structure of the converter, an elliptically or circularly polarized beam is expected to be obtained. These flexible terahertz converters may have many potential applications in terahertz technology.