Zain Elabdeen A. Mohamed, Sofyan A. Taya, Abdulkarem H. M. Almawgani, Ayman Taher Hindi
{"title":"Fano Resonance Based on Coupling Between Nanoring Resonator and MIM Waveguide for Refractive Index Sensor","authors":"Zain Elabdeen A. Mohamed, Sofyan A. Taya, Abdulkarem H. M. Almawgani, Ayman Taher Hindi","doi":"10.1007/s11468-023-02009-2","DOIUrl":null,"url":null,"abstract":"<div><p>Fano resonance is a sharp and asymmetric spectral feature that can be used for refractive index sensing. In this paper, we propose a Fano resonance sensor based on the coupling between a nanoring resonator and a metal-insulator-metal (MIM) waveguide. The nanoring resonator is fabricated in the middle of the MIM waveguide, and the two structures are coupled with high-field confinement. The transmission spectrum of the coupled structure shows a Fano resonance, which is sensitive to the refractive index of the surrounding medium. The sensitivity of the sensor is estimated to be 1700 nm/RIU, which is comparable to the sensitivities of other Fano resonance sensors. In addition, the designed sensor achieves the first-ever FOM and <i>Q</i> factor values of 4300.25 RIU<sup>−1</sup> and 4310, respectively, for plasmonic MIM sensors. The proposed sensor is simple to fabricate and can be used for a wide range of refractive index sensing applications.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"19 2","pages":"567 - 575"},"PeriodicalIF":3.3000,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasmonics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11468-023-02009-2","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Fano resonance is a sharp and asymmetric spectral feature that can be used for refractive index sensing. In this paper, we propose a Fano resonance sensor based on the coupling between a nanoring resonator and a metal-insulator-metal (MIM) waveguide. The nanoring resonator is fabricated in the middle of the MIM waveguide, and the two structures are coupled with high-field confinement. The transmission spectrum of the coupled structure shows a Fano resonance, which is sensitive to the refractive index of the surrounding medium. The sensitivity of the sensor is estimated to be 1700 nm/RIU, which is comparable to the sensitivities of other Fano resonance sensors. In addition, the designed sensor achieves the first-ever FOM and Q factor values of 4300.25 RIU−1 and 4310, respectively, for plasmonic MIM sensors. The proposed sensor is simple to fabricate and can be used for a wide range of refractive index sensing applications.
期刊介绍：
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
