Ultra-thin circular polarization analyzer based on the metal rectangular split-ring resonators.
We propose an ultra-thin metasurface of the metal rectangular split-ring resonators (MRSRR) array which can modulate and analyze the wavefront of circularly polarized light efficiently. An incident circularly polarized light could be converted into the corresponding cross-polarized light which would be bent to ± 23° at a wavelength of 808 nm for the normal incidence. And a linearly polarized light would be decomposed into two lights of left and right-handed circular polarizations in the directions of ∓23° respectively. These phenomena have also been observed at 1200 nm with different geometric parameters. And these results depend on controlling the optical-axis profile of the resonators in a subwavelength scale by precisely modulating two degrees of freedom in our nanostructures.
Rongzhen
R
Li
Zhongyi
Z
Guo
Wei
W
Wang
Jingran
J
Zhang
Anjun
A
Zhang
Jianlong
J
Liu
Shiliang
S
Qu
Jun
J
Gao
D003198:Computer Simulation; D008027:Light; D008670:Metals / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation
D008670:Metals