N Broadband polarization resolving based on dielectric metalenses in the near-infrared

被引:36
作者
Yang, Hui [1 ,2 ]
Li, Guanhai [1 ]
Cao, Guangtao [1 ,3 ]
Zhao, Zengyue [1 ,4 ]
Chen, Jin [1 ,2 ]
Ou, Kai [1 ,2 ]
Chen, Xiaoshuang [1 ]
Lu, Wei [1 ,4 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, 500 Yu Tian Rd, Shanghai 200083, Peoples R China
[2] Univ Chinese Acad Sci, 19 A Yu Quan Rd, Beijing 100049, Peoples R China
[3] Jishou Univ, Coll Phys Mech & Elect Engn, Jishou 416000, Peoples R China
[4] Shanghai Univ Sci & Technol, 100 Hai Ke Rd, Shanghai 201210, Peoples R China
来源
OPTICS EXPRESS | 2018年 / 26卷 / 05期
基金
中国国家自然科学基金;
关键词
PLASMONIC METASURFACE; VISIBLE WAVELENGTHS; STOKES PARAMETERS; ANGULAR-MOMENTUM; META-LENSES; LIGHT; DISPERSION; GENERATION; OPTICS; STATE;
D O I
10.1364/OE.26.005632
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrate a novel polarization-resolved device (PRD) with the ability to accurately resolve the polarization states via a simple measurement process. The PRD is composed of two elaborately designed metalenses, which are capable of focusing the two circularly polarized (CP) lights. Therefore, for an arbitrary polarized light (treated as a combination of the two CP lights), a discrepancy is exhibited on focusing efficiency, which inversely provides a way to calculate the ellipticity. With such a strategy, the generalized form for polarization resolving is derived, with which the ellipticity of the incident polarized light can be calculated (through just measuring the efficiencies of the two spots). This process is accomplished by utilizing the numerical simulations and theoretical analysis. Moreover, resolving the polarization states can be achieved within a wavelength range of 400nm, due to the broadband effect of the designed metalenses. With the merits of compact configuration, broadband and compatibility with the existing semiconductor technology, the designed PRD holds potential applications in characterizing the polarization states. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码:5632 / 5643
页数:12
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