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题名:
Tight focusing of radially and azimuthally polarized light with plasmonic metalens
作者: Luo, Jun1,2; Zhao, Zeyu1; Pu, Mingbo1; Yao, Na1; Tang, Dongliang1; Gao, Ping1; Jin, Jinjin1; Li, Xiong1; Wang, Changtao1; Yu, Honglin2; Luo, Xiangang1
刊名: OPTICS COMMUNICATIONS
出版日期: 2015-12-01
卷号: 356, 页码:445-450
关键词: Metamaterials ; Lenses ; Plasmonics ; Nanophotonics
DOI: 10.1016/j.optcom.2015.08.025
文章类型: Article
英文摘要: Metasurface provides extreme flexibility to manipulate the phase, polarization and amplitude of electromagnetic wave. By employing the abrupt phase shift in plasmonic nano-antenas, here we present an ultra-thin planar metalens for the azimuthally (or radially) polarized light illumination to obtain a focal spot (or doughnut-shaped focus). The designed metalens exhibits broadband frequency response at frequencies ranging from 300 to 400 THz. In addition, a tight spot size (0.47 lambda) is obtained when designed metalens with inner opaque annulus is illuminated by the azimuthally polarized light with wavelength 857 nm. It is expected that our scheme has potential applications in beam trapping, particle acceleration, integrated optics and super-resolution imaging. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: CYLINDRICAL-VECTOR BEAMS ; HIGH NUMERICAL APERTURE ; PHASE DISCONTINUITIES ; GRADIENT METASURFACES ; METAMATERIAL ; MANIPULATION ; DISPERSION ; SURFACE ; FIELD
收录类别: SCI
语种: 英语
WOS记录号: WOS:000362603600071
ISSN号: 0030-4018
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3715
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China
2.Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing 400030, Peoples R China

Recommended Citation:
Luo, Jun,Zhao, Zeyu,Pu, Mingbo,et al. Tight focusing of radially and azimuthally polarized light with plasmonic metalens[J]. OPTICS COMMUNICATIONS,2015,356:445-450.
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