ArticleSensors (Basel, Switzerland)2018
Plasmonic Multichannel Refractive Index Sensor Based on Subwavelength Tangent-Ring Metal⁻Insulator⁻Metal Waveguide.
Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Machine learning analysis of a Fano resonance based plasmonic refractive index sensor using U shaped resonators.Scientific reports · 2025Article
- Review
- Heterogeneously integrated light emitting diodes and photodetectors in the metal-insulator-metal waveguide platform.Nanophotonics (Berlin, Germany) · 2023Article
- Significantly enhanced coupling effect and gap plasmon resonance in a MIM-cavity based sensing structure.Scientific reports · 2021Article
- Ultrawide Bandgap and High Sensitivity of a Plasmonic Metal-Insulator-Metal Waveguide Filter with Cavity and Baffles.Nanomaterials (Basel, Switzerland) · 2020Article
- Highly Sensitive and Tunable Plasmonic Sensor Based on a Nanoring Resonator with Silver Nanorods.Nanomaterials (Basel, Switzerland) · 2020Article
- Plasmonic nanosensor based on multiple independently tunable Fano resonances.Beilstein journal of nanotechnology · 2019Article
- Multiple Fano resonances with flexible tunablity based on symmetry-breaking resonators.Beilstein journal of nanotechnology · 2019Article
- A Plasmonic Chip-Scale Refractive Index Sensor Design Based on Multiple Fano Resonances.Sensors (Basel, Switzerland) · 2018Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this paper, a multichannel refractive index sensor based on a subwavelength metal⁻insulator⁻metal (MIM) waveguide coupled with tangent-ring resonators is proposed. When two tangent-ring resonators were placed above the MIM waveguide, Fano resonance with asymmetrical line shape appeared in the transmission spectrum due to the interference between the light⁻dark resonant modes. The sensitivity and figure of merit were as high as 880 nm/RIU and 964, respectively. Through adding more tangent-ring resonators, multiple Fano resonances with ultrasharp peaks/dips were achieved in the wavelength range of 800⁻2000 nm. Besides, negative group delays were also observed in the Fano resonant dips. Two-dimensional finite-difference time-domain (FDTD) method was used to simulate and analyze the performances of the proposed structures. These kinds of multiring structures can find important applications in the on-chip optical sensing and optical communication areas.
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