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题名:
Efficient bending and focusing of light beam with all-dielectric subwavelength structures
作者: Shen, Yue1; Luo, Xiangang1,2
刊名: OPTICS COMMUNICATIONS
出版日期: 2016-05-01
卷号: 366, 页码:174-178
关键词: Phase shift ; Subwavelength structures ; Metamaterials
DOI: 10.1016/j.optcom.2015.12.043
文章类型: Article
英文摘要: In this paper, all-dielectric subwavelength structures are proposed to construct beam deflectors and lenses that modulate the light fields efficiently. These devices are composed of planar array of silicon pyramids with spatially varying geometric shapes, thereby introducing arbitrary phase shift to the propagating light. Meanwhile, owing to the intrinsic low-reflection property, average reflectance as low as 10% is accomplished. The lenses were rigorously designed in both one-dimensional (1D) and two-dimensional (2D) cases. Due to the symmetry of the unit cell, there is no limitation on the polarization state of the incident light. Since no plasmonic loss is incorporated, this design could meet the requirement of wavefront manipulation for laser beams. (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]: SURFACE-PLASMON POLARITONS ; BROAD-BAND ; POLARIZATION CONVERSION ; METASURFACES ; LENS ; METAMATERIAL ; REFRACTION ; REFLECTION ; DISPERSION ; FRONT
收录类别: SCI
项目资助者: National Basic Research Program of China(2013CBA01700) ; Natural Science Foundation of China(61138002)
语种: 英语
WOS记录号: WOS:000369368700029
ISSN号: 0030-4018
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3843
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.Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, POB 350, Chengdu 610209, Peoples R China

Recommended Citation:
Shen, Yue,Luo, Xiangang. Efficient bending and focusing of light beam with all-dielectric subwavelength structures[J]. OPTICS COMMUNICATIONS,2016,366:174-178.
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