A high sensitive sensor using MIM waveguide coupled with a rectangular cavity with Fano resonance
| Autor: | Hocine Bahri, Souheil Mouetsi, Hocine Ben Salah, Abdesselam Hocini |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry Physics::Optics Fano resonance Waveguide (optics) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Wavelength Planar Optoelectronics Sensitivity (control systems) Electrical and Electronic Engineering Photonics business Refractive index Plasmon |
| Zdroj: | Optical and Quantum Electronics. 53 |
| ISSN: | 1572-817X 0306-8919 |
| DOI: | 10.1007/s11082-021-02976-y |
| Popis: | In this paper, a design with high sensitivity of a plasmonic biosensor by waveguide system is proposed, based on Metal-Insulator-Metal coupled with unique rectangular cavities, this structure numerically simulated using the Finite-Difference Time-Domain method in two dimensions (2D), and analyzed for the optimal sensor performance, by detecting the resonance wavelength and varying the refractive index. The results show two sharp transmission peaks with high transmittance and asymmetrical line-shaped Fano resonances achieved with a high value of sensitivity is 3010 nm/RIU, by taking the wavelength resolution to reach as high as 3.84 × 10− 6 RIU. Considering the standards of Chip-scale integrated planar photonic sensing, the newly designed of the proposed structure with such high sensitivity provides remarkable properties suitable for biosensors, filter, and provide a new possibility for designing compact and high-performance plasmonic biosensors devices. |
| Databáze: | OpenAIRE |
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