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Versatile Cross‐Polarization Conversion Chiral Metasurface for Linear and Circular Polarizations
Author(s) -
Fei Peng,
Vandenbosch Guy A. E.,
Guo Weihua,
Wen Xin,
Xiong Di,
Hu Wei,
Zheng Qi,
Chen Xing
Publication year - 2020
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.202000194
Subject(s) - circular polarization , polarization (electrochemistry) , linear polarization , materials science , polarization rotator , optics , optical rotation , optoelectronics , physics , microstrip , laser , chemistry , birefringence
In this work, first the necessary conditions for a versatile cross‐polarization conversion meta‐atom that operates both for linear and circular cross polarizations are discussed. Based on these, a versatile chiral metasurface cross‐polarization converter is proposed. The correspondence between its physical geometry and polarization domain characteristics is studied. To verify the design concept, a prototype is fabricated and measured. An effective vertical and horizontal linear cross‐polarization conversion is achieved from 29.3 to 38.8 GHz (27.90%) and from 34.0 to 36.6 GHz (7.36%), respectively. Furthermore, the proposed converter also achieves circular polarization handedness rotation from 34.5 to 36.6 GHz (5.91%).