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Efficient bending and focusing of light beam with all-dielectric subwavelength structures
Shen, Yue1; Luo, Xiangang1,2
Source PublicationOPTICS COMMUNICATIONS
Volume366Pages:174-178
2016-05-01
Language英语
ISSN0030-4018
DOI10.1016/j.optcom.2015.12.043
Indexed BySCI
WOS IDWOS:000369368700029
SubtypeArticle
AbstractIn 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.
KeywordPhase Shift Subwavelength Structures Metamaterials
WOS KeywordSURFACE-PLASMON POLARITONS ; BROAD-BAND ; POLARIZATION CONVERSION ; METASURFACES ; LENS ; METAMATERIAL ; REFRACTION ; REFLECTION ; DISPERSION ; FRONT
WOS Research AreaOptics
WOS SubjectOptics
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/3843
Collection光电技术研究所被WoS收录文章
Affiliation1.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
GB/T 7714
Shen, Yue,Luo, Xiangang. Efficient bending and focusing of light beam with all-dielectric subwavelength structures[J]. OPTICS COMMUNICATIONS,2016,366:174-178.
APA Shen, Yue,&Luo, Xiangang.(2016).Efficient bending and focusing of light beam with all-dielectric subwavelength structures.OPTICS COMMUNICATIONS,366,174-178.
MLA Shen, Yue,et al."Efficient bending and focusing of light beam with all-dielectric subwavelength structures".OPTICS COMMUNICATIONS 366(2016):174-178.
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