期刊
OPTICS LETTERS
卷 44, 期 4, 页码 1056-1059出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.44.001056
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资金
- National Natural Science Foundation of China (NSFC) [61805097]
We propose a novel design of a 3D chiral metasurface behaving as a spatial polarization converter with asymmetric transmission. The metasurface is made of a lattice of metallic one-and-a-half-pitch helical particles. The proposed metasurface exhibits a dual-band asymmetric transmission accompanied by the effect of complete polarization conversion. Regarding circularly polarized waves, the metasurface demonstrates a strong circular dichroism. A prototype of the metasurface is manufactured for the quasi-optic experiment by using a 3D printing technique utilizing a cobalt- chromium alloy, which exhibits good performances against thermal fatigue and corrosion at high temperatures. (C) 2019 Optical Society of America
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