Multiple Fano resonances based on clockwork spring-shaped resonator for refractive index sensing

doi:10.1088/1402-4896/ac3fcf

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	Multiple Fano resonances based on clockwork spring-shaped resonator for refractive index sensing
	Ding, Jinghui 2; Qi, Yunping 2; Yuan, Yujiao 2; Chen, Haowen 2; Liu, Weiming 1; Jia, Yingjun 2; Wang, Xiangxian 3
刊名	PHYSICA SCRIPTA
	2021-12-01
卷号	96 期号:12
关键词	fano resonance multimode interference coupled mode theory (MICMT) metal-insulator-metal waveguide refractive index
ISSN号	0031-8949
DOI	10.1088/1402-4896/ac3fcf
英文摘要	A surface plasmon polarized structure consisting of two metal-insulator-metal (MIM) waveguide coupled with clockwork spring-shaped resonators are constructed in this paper, and its geometric parameters are controlled within a few hundred nanometers. The finite element method (FEM) and multimode interference coupled mode theory (MICMT) are used to simulate and theoretically calculate the optical response of the designed structure. By modifying the structural parameters of the system, the influence on the asymmetry of the Fano resonance line is studied. The changes of the transmission spectra at different refractive indexes are also investigated. Based on this asymmetric resonant line, the sensitivity and FOM* (figure of merit) value of the cavity with different parameters are measured. The sensitivity and FOM* under the best parameters are 1200 nm RIU-1 and 191.6, respectively. The surface plasmon structure proposed and the results in this paper are promising for applications in the field of high-performance sensing and micro-nano optical devices.
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000734055200001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154970]
专题	理学院
作者单位	1.Chinese Acad Sci Adv Energy Sci & Technol, Guangdong Lab, Insitute Modern Phys, Huizhou 516000, Peoples R China; 2.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China; 3.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Ding, Jinghui,Qi, Yunping,Yuan, Yujiao,et al. Multiple Fano resonances based on clockwork spring-shaped resonator for refractive index sensing[J]. PHYSICA SCRIPTA,2021,96(12).
APA	Ding, Jinghui.,Qi, Yunping.,Yuan, Yujiao.,Chen, Haowen.,Liu, Weiming.,...&Wang, Xiangxian.(2021).Multiple Fano resonances based on clockwork spring-shaped resonator for refractive index sensing.PHYSICA SCRIPTA,96(12).
MLA	Ding, Jinghui,et al."Multiple Fano resonances based on clockwork spring-shaped resonator for refractive index sensing".PHYSICA SCRIPTA 96.12(2021).