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Freely Tunable Broadband Polarization Rotator for Terahertz Waves
Author(s) -
Fan RenHao,
Zhou Yu,
Ren XiaoPing,
Peng RuWen,
Jiang ShangChi,
Xu DiHu,
Xiong Xiang,
Huang XianRong,
Wang Mu
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201404981
Subject(s) - terahertz radiation , materials science , broadband , polarization (electrochemistry) , optoelectronics , polarization rotator , optics , grating , birefringence , physics , chemistry
A freely tunable polarization rotator for broadband terahertz waves is demonstrated using a three‐rotating‐layer metallic grating structure, which can conveniently rotate the polarization of a linearly polarized terahertz wave to any desired direction with nearly perfect conversion efficiency. This low‐cost, high‐efficiency, and freely tunable device has potential applications as material analysis, wireless communication, and THz imaging.