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Tight focusing of radially and azimuthally polarized light with plasmonic metalens
Luo, Jun; Zhao, Zeyu; Pu, Mingbo; Yao, Na; Tang, Dongliang; Gao, Ping; Jin, Jinjin; Li, Xiong; Wang, Changtao; Yu, Honglin; Luo, Xiangang
Source PublicationOPTICS COMMUNICATIONS
Volume356Pages:445-450
2015
Language英语
ISSN0030-4018
DOI10.1016/j.optcom.2015.08.025
Indexed BySCI
WOS IDWOS:000362603600071
Subtype期刊论文
AbstractMetasurface 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.; 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.
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6879
Collection微细加工光学技术国家重点实验室(开放室)
Recommended Citation
GB/T 7714
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.
APA Luo, Jun.,Zhao, Zeyu.,Pu, Mingbo.,Yao, Na.,Tang, Dongliang.,...&Luo, Xiangang.(2015).Tight focusing of radially and azimuthally polarized light with plasmonic metalens.OPTICS COMMUNICATIONS,356,445-450.
MLA Luo, Jun,et al."Tight focusing of radially and azimuthally polarized light with plasmonic metalens".OPTICS COMMUNICATIONS 356(2015):445-450.
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