Broadband and high-efficiency accelerating beam generation by dielectric catenary metasurfaces

doi:10.1515/nanoph-2020-0057

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 微细加工光学技术国家重点实验室（开放室）

	Broadband and high-efficiency accelerating beam generation by dielectric catenary metasurfaces
	Zhang, Fei 1,2; Zeng, Qingyu 2; Pu, Mingbo 2,3; Wang, Yanqin 2,3; Guo, Yinghui 2,3; Li, Xiong 2,3; Ma, Xiaoliang 2,3; Luo, Xiangang 2,3
刊名	Nanophotonics
	2020-09-01
卷号	9 期号:9 页码:2829-2837
关键词	catenary metasurfaces pancharatnam-berry phase self-accelerating beams subwavelength structures
ISSN号	2192-8606
DOI	10.1515/nanoph-2020-0057
文献子类	期刊论文
英文摘要	Self-accelerating beams show considerable captivating phenomena and applications owing to their transverse acceleration, diffraction-free and self-healing properties in free space. Metasurfaces consisting of dielectric or metallic subwavelength structures attract enormous attention to acquire self-accelerating beams, owing to their extraordinary capabilities in the arbitrary control of electromagnetic waves. However, because the self-accelerating beam generator possesses a large phase gradient, traditional discrete metasurfaces suffer from insufficient phase sampling, leading to a low efficiency and narrow spectral band. To overcome this limitation, a versatile platform of catenary-inspired dielectric metasurfaces is proposed to endow arbitrary continuous wavefronts. A high diffraction efficiency approaching 100% is obtained in a wide spectral range from 9 to 13 μm. As a proof-of-concept demonstration, the broadband, high-efficiency and high-quality self-accelerating beam generation is experimentally verified in the infrared band. Furthermore, the chiral response of the proposed metasurfaces enables the spin-controlled beam acceleration. Considering these superior performances, this design methodology may find wide applications in particle manipulation, high-resolution imaging, optical vortex generation, and so forth. © 2020 Fei Zhang et al., published by De Gruyter, Berlin/Boston 2020.
出版地	BERLIN
WOS关键词	ACHROMATIC METALENS ; AIRY
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Optics ; Physics
语种	英语
出版者	WALTER DE GRUYTER GMBH
WOS记录号	WOS:000556630800013
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/10092]
专题	光电技术研究所_微细加工光学技术国家重点实验室（开放室）
作者单位	1.Key Laboratory of Optoelectronic Technology and System, Ministry of Education, Chongqing University, Chongqing; 400030, China 2.State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 3.School of Optoelectronics, University of Chinese Academy of Sciences, Beijing; 100049, China;
推荐引用方式 GB/T 7714	Zhang, Fei,Zeng, Qingyu,Pu, Mingbo,et al. Broadband and high-efficiency accelerating beam generation by dielectric catenary metasurfaces[J]. Nanophotonics,2020,9(9):2829-2837.
APA	Zhang, Fei.,Zeng, Qingyu.,Pu, Mingbo.,Wang, Yanqin.,Guo, Yinghui.,...&Luo, Xiangang.(2020).Broadband and high-efficiency accelerating beam generation by dielectric catenary metasurfaces.Nanophotonics,9(9),2829-2837.
MLA	Zhang, Fei,et al."Broadband and high-efficiency accelerating beam generation by dielectric catenary metasurfaces".Nanophotonics 9.9(2020):2829-2837.