High-efficiency, dual-band beam splitter based on an all-dielectric quasi-continuous metasurface

doi:10.3390/ma14123184

	High-efficiency, dual-band beam splitter based on an all-dielectric quasi-continuous metasurface
	Li, Jing 1,2; He, Yonggang 3; Ye, Han 1; Wu, Tiesheng 2; Liu, Yumin 1; He, Xuyi4 ; Li, Jing 5; Cheng, Jie 5
	2021-06-02
发表期刊	Materials
EISSN	1996-1944
卷号	14 期号:12
摘要	Metasurface-based beam splitters attracted huge interest for their superior properties compared with conventional ones made of bulk materials. The previously reported designs adopted discrete metasurfaces with the limitation of a discontinuous phase profile. In this paper, we propose a dual-band beam splitter, based on an anisotropic quasi-continuous metasurface, by exploring the optical responses under x-polarized (with an electric field parallel to the direction of the phase gradient) and y-polarized incidences. The adopted metasurface consists of two identical trapezoidal silicon antenna arrays with opposite spatial variations that lead to opposite phase gradients. The operational window of the proposed beam splitter falls in the infrared and visible region, respectively, for x-and y-polarized light, resulting from the different mechanisms. When x-polarized light is incident, the conversion efficiency and total transmission of the beam splitter remains higher than 90% and 0.74 within the wavelength range from 969 nm to 1054 nm, respectively. In this condition, each array can act as a beam splitter of unequal power. For y-polarized incidence, the maximum conversion efficiency and transmission reach approximately 100% and 0.85, while the values remain higher than 90% and 0.65 in the wavelength range from 687 nm to 710 nm, respectively. In this case, each array can be viewed as an effective beam deflector. We anticipate that it can play a key role in future integrated optical devices. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
关键词	Antenna arrays Conversion efficiency Efficiency Electric fields Light polarization Optical instruments Prisms Transmissions Different mechanisms Integrated optical devices Operational windows Optical response Spatial variations Total transmission Trapezoidal silicon Wavelength ranges
DOI	10.3390/ma14123184
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000666969200001
出版者	MDPI AG
EI入藏号	20212610550241
EI分类号	525.5 Energy Conversion Issues ; 602.2 Mechanical Transmissions ; 701.1 Electricity: Basic Concepts and Phenomena ; 741.1 Light/Optics ; 741.3 Optical Devices and Systems ; 913.1 Production Engineering ; 941.3 Optical Instruments
原始文献类型	Journal article (JA)
出版地	BASEL
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/3023
专题	电子与物联网学院
作者单位	1.State Key Laboratory of Information Photonics and Optical Communications, University of Posts and Telecommunications, Beijing; 100876, China; 2.College of Information and Communication Engineering, Guilin University of Electronic Technology, Guilin; 541004, China; 3.School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing; 210094, China; 4.School of Electronics and Internet of Things, Chongqing College of Electronic Engineering, Chongqing; 401331, China; 5.State Grid Information & Telecommunication Branch, Beijing; 100761, China
推荐引用方式 GB/T 7714	Li, Jing,He, Yonggang,Ye, Han,et al. High-efficiency, dual-band beam splitter based on an all-dielectric quasi-continuous metasurface[J]. Materials,2021,14(12).
APA	Li, Jing.,He, Yonggang.,Ye, Han.,Wu, Tiesheng.,Liu, Yumin.,...&Cheng, Jie.(2021).High-efficiency, dual-band beam splitter based on an all-dielectric quasi-continuous metasurface.Materials,14(12).
MLA	Li, Jing,et al."High-efficiency, dual-band beam splitter based on an all-dielectric quasi-continuous metasurface".Materials 14.12(2021).

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