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arXiv · 1410.2656

Circular Polarizer Realized by a Single Layer of Planar Chiral Metallic Nanostructure

Weimin Ye·Xiaodong Yuan·Chucai Guo·Jianfa Zhang·Biao Yang·Ken Liu·Zhihong Zhu·Chun Zeng
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Abstract

As a basic optical element, circular polarizer plays significant roles in signal transmission, measurements and life science microscopy. Three-dimensional (3D) chiral structures have been thought to be necessary to realize circular polarizers. Here we demonstrate theoretically and experimentally for the first time that a high-efficiency circular polarizer could be realized by a single layer of planar 2D chiral structure. Our proposed circular polarizer is based on unidirectional polarization conversion instead of circular polarization stop bands. Since two-dimensional planar structures present obvious advantage for fabrication and integration on chip, the proposed circular polarizer is of great interest in integrated optics and microscopy. It provides a novel scheme to manipulate polarizations of light wave, as well as Terahertz wave and microwave.

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Weimin Ye, Xiaodong Yuan, Chucai Guo, Jianfa Zhang, Biao Yang, Ken Liu, Zhihong Zhu, Chun Zeng. 2014-10-10. Circular Polarizer Realized by a Single Layer of Planar Chiral Metallic Nanostructure. https://arxiv.org/abs/1410.2656

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