| Citation: | ZHAO Xiao-long, CHANG Xu-yan, LIU Yan-li, ZHANG Zhi-dong. Multi-Fano resonances sensing based on a non-through metal-insulator-metal waveguide coupling D-shaped cavity[J]. Chinese Optics. doi: 10.37188/CO.EN-2025-0017
|
A plasmonics waveguide structure that consist of a non-through metal–insulator–metal (MIM) waveguide coupled with a D-shaped cavity was designed. And the transmission properties, magnetic field distribution, and refractive index sensing functionality were simulated using the finite element method (FEM). A multi-Fano resonance phenomenon was clearly observable in the transmission spectra. The Fano resonances observed in the proposed structure arise from the interaction between the discrete states of the D-shaped resonant cavity and the continuum state of the non-through MIM waveguide. The influence of structural parameters on Fano resonance modulation was investigated through systematic parameter adjustments. Additionally, the refractive index sensing properties, based on the Fano resonance, were investigated by varying the refractive index of the MIM waveguide's insulator layer. A maximum sensitivity and FOM of
| [1] |
ZAYATS A V, SMOLYANINOV I I. Near-field photonics: surface plasmon polaritons and localized surface plasmons[J]. Journal of Optics A: Pure and Applied Optics, 2003, 5(4): S16-S50.
|
| [2] |
ZAYATS A V, SMOLYANINOV I I, MARADUDIN A A. Nano-optics of surface plasmon polaritons[J]. Physics Reports, 2005, 408(3-4): 131-314.
|
| [3] |
LIU J, LIU J, WANG Y T, et al. Resonant properties of sub-wavelength metallic gratings[J]. Chinese Optics, 2011, 4(4): 363-368. (in Chinese).
|
| [4] |
HE Q Y, LI G H, PAN D, et al. Research progress of surface plasmon polariton metal-insulator-semiconductor waveguide lasers[J]. Chinese Journal of Luminescence, 2022, 43(12): 1839-1854. (in Chinese).
|
| [5] |
HAN ZH H, BOZHEVOLNYI S I. Radiation guiding with surface plasmon polaritons[J]. Reports on Progress in Physics, 2013, 76(1): 016402.
|
| [6] |
ZHU J, LI ZH Q. Characteristics of transmission and attenuation of surface plasmon polaritons in Otto structure loaded MIM wave guide[J]. Chinese Journal of Luminescence, 2013, 34(11): 1533-1537. (in Chinese).
|
| [7] |
LI M, CUSHING S K, WU N Q. Plasmon-enhanced optical sensors: a review[J]. Analyst, 2015, 140(2): 386-406.
|
| [8] |
LEI J G, LIU T H, LIN J Q, et al. New applications of surface plasmon polaritons[J]. Chinese Journal of Optics and Applied Optics, 2010, 3(5): 432-439. (in Chinese).
|
| [9] |
YE L F, CHEN Y, WANG ZH Y, et al. Compact spoof surface plasmon polariton waveguides and notch filters based on meander-strip units[J]. IEEE Photonics Technology Letters, 2021, 33(3): 135-138.
|
| [10] |
KAZANSKIY N L, KHONINA S N, BUTT M A. Plasmonic sensors based on metal-insulator-metal waveguides for refractive index sensing applications: a brief review[J]. Physica E: Low-dimensional Systems and Nanostructures, 2020, 117: 113798.
|
| [11] |
BUTT M A. Review of innovative cavity designs in metal–insulator-metal waveguide-based plasmonic sensors[J]. Plasmonics, 2024, 20(6): 4257-4276. doi: 10.1007/s11468-024-02562-4
|
| [12] |
CHEN J J, GAN F Y, WANG Y J, et al. Plasmonic sensing and modulation based on fano resonances[J]. Advanced Optical Materials, 2018, 6(9): 1701152.
|
| [13] |
KONG Y, CAO J J, QIAN W C, et al. Multiple Fano resonance based optical refractive index sensor composed of micro-cavity and micro-structure[J]. IEEE Photonics Journal, 2018, 10(6): 6804410.
|
| [14] |
SHE S C, SHEN S M, WANG Z Y, et al. Fano-resonance-based refractive index sensor with ultra-high sensitivity[J]. Results in Physics, 2021, 25: 104327.
|
| [15] |
XU B, DAI Y M, ZHAO L X, et al. Temperature-tunable Fano resonance induced by strong coupling between Weyl fermions and phonons in TaAs[J]. Nature Communications, 2017, 8: 14933.
|
| [16] |
GUO H Y, FANG W J, PANG J L, et al. Multiple Fano resonances based on all-dielectric metastructure for refractive index sensing[J]. Infrared Physics & Technology, 2024, 139: 105284.
|
| [17] |
ROHIMAH S, TIAN H, WANG J F, et al. Fano resonance in the plasmonic structure of MIM waveguide with r-shaped resonator for refractive index sensor[J]. Plasmonics, 2022, 17(4): 1681-1689.
|
| [18] |
ZHANG ZH D, ZHANG H N, LIANG J, et al. Double Fano resonance and refractive index sensors based on parallel-arranged Au nanorod dimer metasurface arrays[J]. Chinese Optics, 2023, 16(4): 961-971. (in Chinese). doi: 10.37188/CO.EN-2023-0008
|
| [19] |
ZHU J, WU CH S. Optical refractive index sensor with Fano resonance based on original MIM waveguide structure[J]. Results in Physics, 2021, 21: 103858.
|
| [20] |
RAHAD R, HOSSAIN N, HOSSAIN A. Enhanced alcohol detection using surface plasmon polariton dependent MIM plasmonic sensor[J]. Plasmonics, 2025, 20: 1331-1340. doi: 10.1007/s11468-024-02360-y
|
| [21] |
BUTT M A, KAZANSKIY N L, KHONINA S N. Tapered waveguide mode converters for metal-insulator-metal waveguide plasmonic sensors[J]. Measurement, 2023, 211: 112601.
|
| [22] |
BUTT M A, PIRAMIDOWICZ R. Orthogonal mode couplers for plasmonic chip based on metal–insulator–metal waveguide for temperature sensing application[J]. Scientific reports, 2024, 14(1): 3474.
|
| [23] |
BUTT M A. Plasmonic sensors based on a metal–insulator–metal waveguide—what do we know so far[J]. Sensors, 2024, 24(22): 7158.
|
| [24] |
ZAYATS A V, SMOLYANINOV I I, MARADUDIN A A. Nano-optics of surface plasmon polaritons[J]. Physics Reports, 2005, 408(3-4): 131-314. (查阅网上资料, 本条文献与第2条文献重复, 请核对).
|
| [25] |
GAI H F, WANG J, TIAN Q. Modified Debye model parameters of metals applicable for broadband calculations[J]. Applied Optics, 2007, 46(12): 2229-2233.
|
| [26] |
ZHANG Z D, LUO L, XUE C Y, et al. Fano resonance based on metal-insulator-metal waveguide-coupled double rectangular cavities for plasmonic nanosensors[J]. Sensors, 2016, 16(5): 642.
|
| [27] |
ZHANG ZH Y, WANG J D, ZHAO Y N, et al. Numerical investigation of a branch-shaped filter based on metal-insulator-metal waveguide[J]. Plasmonics, 2011, 6(4): 773-778.
|
Figures(8)
DownLoad:
