Efficient bending and focusing of light beam with all-dielectric subwavelength structures

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	Efficient bending and focusing of light beam with all-dielectric subwavelength structures
	Shen, Yue 1; Luo, Xiangang 1,2
刊名	OPTICS COMMUNICATIONS
	2016-05-01
卷号	366 页码:174-178
关键词	Phase shift Subwavelength structures Metamaterials
ISSN号	0030-4018
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
语种	英语
WOS记录号	WOS:000369368700029
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/3843]
专题	光电技术研究所_光电技术研究所被WoS收录文章
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
推荐引用方式 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.