Open AccessEnhanced asymmetric transmission due to Fabry-Perot-like cavity
Author(s) -
Dao-Ya Liu,
Minhua Li,
Xiaofan Zhai,
Li-Fang Yao,
Jianrong Dong
Publication year - 2014
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.22.011707
Subject(s) - fabry–pérot interferometer , transmittance , materials science , optics , metamaterial , polarization (electrochemistry) , optoelectronics , transmission coefficient , transmission (telecommunications) , wavelength , bandwidth (computing) , extraordinary optical transmission , physics , plasmon , telecommunications , surface plasmon , surface plasmon polariton , chemistry , computer science
In this paper, a three layered metamaterial composed of a ring-chain structure sandwiched between two layers of twisted sub-wavelength cut-wire arrays is proposed and investigated. The designed structure is optimized such that asymmetric transmission with an extremely broad bandwidth, sharp rejection stop-band and high transmittance is achieved. The physical mechanism is accounted for that the metallic layers form the Fabry-Perot-like resonance cavity, enhancing the polarization conversion efficiency between two orthogonal linearly polarized waves. To some extent, this approach offers a way to strengthen asymmetric transmission effect.