Broadband quarter-wave birefringent meta-mirrors for generating sub-diffraction vector fields

被引：24

作者：

Li, Yuyan ^{[1
]}

Cao, Luyao ^{[1
]}

Wen, Zhongquan ^{[1
]}

Qin, Chunyan ^{[1
]}

Yang, Unbo ^{[2
]}

Zhang, Zhihai ^{[1
]}

Liang, Gaofeng ^{[1
]}

Shang, Zhengguo ^{[1
]}

Zhang, Kun ^{[1
]}

Zhang, Shuo ^{[1
,3
]}

Dai, Luru ^{[3
]}

Chen, Gang ^{[1
]}

机构：

[1] Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Sch Optoelect Engn, 173 Shazheng St, Chongqing 400044, Peoples R China

[2] Natl Univ Def Technol, Ctr Mat Sci, Changsha 410073, Hunan, Peoples R China

[3] Natl Ctr Nanosci & Technol, 11 ZhongGuanCun BeiYiTiao, Beijing 100190, Peoples R China

来源：

OPTICS LETTERS | 2019年 / 44卷 / 01期

基金：

中国国家自然科学基金;

关键词：

POLARIZATION; PHASE; MANIPULATION; METASURFACES; RESOLUTION; PLATE;

D O I：

10.1364/OL.44.000110

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Independent manipulation of phase and polarization of optical fields is of great interest in various applications, including vector-field generation, optical tweezers, and nanolithography. The integration of phase and polarization manipulation on a single optical device may greatly simplify optical systems and eases optical alignment. In this Letter, a family of reflective cross-shaped quarter-wave birefringent metasurfaces is proposed to achieve full control of polarization and phase of reflected waves. Based on the proposed metasurfaces, two meta-mirrors are designed with integrated functions of polarization conversion and sub-diffraction focusing. Numerical investigations also reveal the achromatic focusing performance of the two meta-mirrors. The proposed metasurfaces with independent manipulation of polarization and phase provide flexible building blocks for constructing complicated vector optical fields. (C) 2018 Optical Society of America

引用

页码：110 / 113

页数：4

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