A planar chiral meta-surface for optical vortex generation and focusing

被引：189

作者：

Ma, Xiaoliang ^{[1
]}

Pu, Mingbo ^{[1
]}

Li, Xiong ^{[1
]}

Huang, Cheng ^{[1
]}

Wang, Yanqin ^{[1
]}

Pan, Wenbo ^{[1
]}

Zhao, Bo ^{[1
]}

Cui, Jianhua ^{[1
]}

Wang, Changtao ^{[1
]}

Zhao, Zeyu ^{[1
]}

Luo, Xiangang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

基金：

中国国家自然科学基金;

关键词：

ORBITAL ANGULAR-MOMENTUM; PHASE DISCONTINUITIES; LIGHT; BEAMS;

D O I：

10.1038/srep10365

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Data capacity is rapidly reaching its limit in modern optical communications. Optical vortex has been explored to enhance the data capacity for its extra degree of freedom of angular momentum. In traditional means, optical vortices are generated using space light modulators or spiral phase plates, which would sharply decrease the integration of optical communication systems. Here we experimentally demonstrate a planar chiral antenna array to produce optical vortex from a circularly polarized light. Furthermore, the antenna array has the ability to focus the incident light into point, which greatly increases the power intensity of the generated optical vortex. This chiral antenna array may have potential application in highly integrated optical communication systems.

引用

页数：7

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