Dielectric meta-walls for surface plasmon focusing and Bessel beam generation

doi:10.1209/0295-5075/122/67002

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	Dielectric meta-walls for surface plasmon focusing and Bessel beam generation
	Dong, S. H.; Wang, Z.; Guo, H. J.; Guan, F. X.; Li, X. E.; He, Q.; Zhao, H. B.; Zhou, L.; Sun, S. L.
刊名	Epl
	2018
卷号	122 期号:6 页码:5
关键词	optical-elements reflection polaritons efficiency metasurfaces scale waves Physics
ISSN号	0295-5075
DOI	10.1209/0295-5075/122/67002
英文摘要	Freely tailoring the wavefronts of surface plasmon polaritons (SPPs) is a central goal in plasmonics, but the conventional approaches exhibit low efficiencies and/or require bulky devices. Here, we propose to utilize ultrathin dielectric meta-walls placed vertically on a plasmonic metal to efficiently reshape the wavefront of a launched SPP beam. Based on such a strategy, we experimentally demonstrate two effects in the microwave regime, namely focusing and I. beam generations of spoof SPPs. Near-field scanning measurements are in excellent agreement with full wave simulations. This work can stimulate research in many applications related to SPP manipulations, such as enhanced nonlinear effect, nano-particle trapping, and so on. Copyright (C) EPLA, 2018
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/60634]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Dong, S. H.,Wang, Z.,Guo, H. J.,et al. Dielectric meta-walls for surface plasmon focusing and Bessel beam generation[J]. Epl,2018,122(6):5.
APA	Dong, S. H..,Wang, Z..,Guo, H. J..,Guan, F. X..,Li, X. E..,...&Sun, S. L..(2018).Dielectric meta-walls for surface plasmon focusing and Bessel beam generation.Epl,122(6),5.
MLA	Dong, S. H.,et al."Dielectric meta-walls for surface plasmon focusing and Bessel beam generation".Epl 122.6(2018):5.