Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7223822 | Optik - International Journal for Light and Electron Optics | 2018 | 7 Pages |
Abstract
We propose a kind of three-layered metamaterial which can realize ultra-broad band diode-like asymmetric transmission (AT) of linearly polarized waves and almost 90° cross-polarization rotation in the optical region. Numerical results reveal that the AT amplitude enables to achieve the maximum of 0.97 and surpass 0.8 ranging from 124 to 244â¯THz for linearly polarized waves. Two layers of sub-wavelength gratings and a split-ring resonator in the middle of the two dielectric substrates form the three-layered structure. We believe that our work will offer a new opportunity in many optical applications of optical devices such as polarization rotators and diode-like devices.
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Engineering
Engineering (General)
Authors
Chuan Wang, Xia Zhou, Dengfei Tang, Weikang Pan, Jianfeng Dong,