Tunable sharp resonances based on multimode interference in a MIM-ring coupling plasmonic resonator system

doi:10.1209/0295-5075/132/27001

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	Tunable sharp resonances based on multimode interference in a MIM-ring coupling plasmonic resonator system
	Qi, Yunping 1; Zhang, Ting 1; Zhang, Yu 1; Wang, Xiangxian 2
刊名	EPL
	2020-10-01
卷号	132 期号:2
关键词	73 20 Mf 42 79 Gn 73 40 Rw
ISSN号	0295-5075
DOI	10.1209/0295-5075/132/27001
英文摘要	An asymmetric plasmonic resonator system is composed of two metal-insulator-metal (MIM) waveguides and a ring resonator is proposed. And tunable sharp resonance based on multimode interference in MIM-ring coupling plasmonic resonator system is theoretically and numerically studied. The Fano resonance of the two different physical mechanisms in this paper is explained by using the multimode interference coupled mode theory (MICMT). Results obtained by the theory of MICMT are very well consistent with those from the finite element method (FEM) simulation. For an independent MIM-ring coupling plasmonic resonator system, its Fano resonance is formed by different resonance modes of the same ring resonator interfering with each other. Moreover, the theory of ring resonator explains the red shift which is attributable to the increase of the inner ring radius. For the rectangular and ring hybrid coupling plasmonic resonator system, the electromagnetic waves in the ring resonator and the rectangular resonator interfere with each other, which leads to the Fano resonance. We also studied the sensitivity (S) and figure of merit (FOM) of the rectangular and ring hybrid resonator system as a refractive index sensor up to 1350 nm /RIU and 1543, respectively, which has a certain reference value for the bio-chemical sensors, filters and modulator for large-scale photonic integration.
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000614616500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155076]
专题	理学院
作者单位	1.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China; 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Qi, Yunping,Zhang, Ting,Zhang, Yu,et al. Tunable sharp resonances based on multimode interference in a MIM-ring coupling plasmonic resonator system[J]. EPL,2020,132(2).
APA	Qi, Yunping,Zhang, Ting,Zhang, Yu,&Wang, Xiangxian.(2020).Tunable sharp resonances based on multimode interference in a MIM-ring coupling plasmonic resonator system.EPL,132(2).
MLA	Qi, Yunping,et al."Tunable sharp resonances based on multimode interference in a MIM-ring coupling plasmonic resonator system".EPL 132.2(2020).