Tunable Fano resonance in plasmonic MIM waveguide with P-shaped resonator for refractive index sensing

doi:10.1209/0295-5075/134/67001

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	Tunable Fano resonance in plasmonic MIM waveguide with P-shaped resonator for refractive index sensing
	Qi, Yunping 2; Ding, Jinghui 2; Zhang, Ting 2; Liu, Weiming 3; Wang, Liyuan 2; Wang, Xiangxian 1
刊名	EPL
	2021-06
卷号	134 期号:6
DOI	10.1209/0295-5075/134/67001
英文摘要	Based on the transmission characteristic of surface plasmon polaritons (SPPs), a compact plasmonic system based on a sub-wavelength metal-insulator-metal (MIM) waveguide coupled with P-shaped cavity is proposed. The results show that double Fano resonance peaks are generated in the transmission spectra, which has been studied by the finite-element method (FEM). The transmission spectrum of the system is theoretically verified by the multimode interference coupled mode theory (MICMT) perfectly. In addition, the simulation results show that the position of the resonance peaks can be adjusted by changing the structural parameters. The sensing characteristics of the resonant cavity are also studied, and the refractive index sensitivity and the figure of merit (FOM) are 2100 nm /RIU and 189.97. The results effectively improve the sensitivity and FOM of nano-scale plasmonic sensors and provide significant guidance for the application of tunable multiple Fano resonance in refractive index sensors, biosensors, optical switches and other plasmonic devices.
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000694929300001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148908]
专题	理学院
作者单位	1.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China 2.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China; 3.Chinese Acad Sci Adv Energy Sci & Technol, Insitute Modern Phys, Guangdong Lab, Huizhou 516000, Peoples R China;
推荐引用方式 GB/T 7714	Qi, Yunping,Ding, Jinghui,Zhang, Ting,et al. Tunable Fano resonance in plasmonic MIM waveguide with P-shaped resonator for refractive index sensing[J]. EPL,2021,134(6).
APA	Qi, Yunping,Ding, Jinghui,Zhang, Ting,Liu, Weiming,Wang, Liyuan,&Wang, Xiangxian.(2021).Tunable Fano resonance in plasmonic MIM waveguide with P-shaped resonator for refractive index sensing.EPL,134(6).
MLA	Qi, Yunping,et al."Tunable Fano resonance in plasmonic MIM waveguide with P-shaped resonator for refractive index sensing".EPL 134.6(2021).