Fano resonance in a MIM waveguide with double symmetric rectangular stubs and its sensing characteristics

Chen, Jianfeng; Li, Jina; Liu, Xing; Rohimah, Siti; Tian, He; Qi, Dawei

doi:10.1016/j.optcom.2020.126563

Cited by 92 publications

(34 citation statements)

References 37 publications

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“…[15]. k and k 0 are the wave vector in the waveguide and wave vector in free space and k = β 2 − ε Ag k 2 0 , k 0 = 2π/λ FR , β is the propagation constant [5,10,20]. In order to further understand the underlying principle of Fano resonance, the H Z field distributions are studied and plotted in Figure 2b,c.…”

Section: Resultsmentioning

confidence: 99%

“…Additionally, f is the resonance mode order ( f = 1, 2, 3, …) [ 15 ]. k and k 0 are the wave vector in the waveguide and wave vector in free space and k =

, k 0 = 2π/λ FR , β is the propagation constant [ 5 , 10 , 20 ].…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, many nanosensors based on the Fano resonance have been proposed [18,19]. Chen et al designed a surface plasmon waveguide structure and the sensitivity is up to 1180 nm/RIU [20]. Qi et al presented an asymmetric plasmonic resonator system with a sensitivity of up to 1350 nm/RIU [21].…”

Section: Introductionmentioning

confidence: 99%

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A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator

et al. 2021

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A nanostructure comprising the metal-insulator-metal (MIM) bus waveguide with a stub coupled with a racetrack ring resonator is designed. The spectral characteristics of the proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance profile and electromagnetically induced transparency (EIT)-like effect, which are excited by a coupling between the MIM bus waveguide with a stub and the racetrack ring resonator. The normalized HZ field is affected by the displacement of the ring from the stub x greatly. The influence of the geometric parameters of the sensor design on the sensing performance is discussed. The sensitivity of the proposed structure can reach 1774 nm/RIU with a figure of merit of 61. The proposed structure has potential in nanophotonic sensing applications.

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Section: Resultsmentioning

confidence: 99%

“…Additionally, f is the resonance mode order ( f = 1, 2, 3, …) [ 15 ]. k and k 0 are the wave vector in the waveguide and wave vector in free space and k =

, k 0 = 2π/λ FR , β is the propagation constant [ 5 , 10 , 20 ].…”

Section: Resultsmentioning

confidence: 99%

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A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator

et al. 2021

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“…The default values are the best structure parameters and the properties is better than most of those that are listed in Table 1. [31] 1262 [27] 1180 [32] 1295 [28] 1350 [33] 1120 [29] 1075 [34] 1949 [30] 1200 [35] 2080…”

Section: Resultsmentioning

confidence: 99%

“…In refractive index sensing field, Chen et al designed a surface plasmon waveguide structure, and the sensitivity is up to 1180 nm/RIU [27]. Qi [32].…”

Section: Introductionmentioning

confidence: 99%

Study on the Nanosensor Based on a MIM Waveguide with a Stub Coupled with a Horizontal B-Type Cavity

et al. 2021

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Due to their compact size and high sensitivity, plasmonic sensors have become a hot topic in the sensing field. A nanosensor structure, comprising the metal–insulator–metal (MIM) waveguide with a stub and a horizontal B-Type cavity, is designed as a refractive index sensor. The spectral characteristics of proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance profile, which is excited by a coupling between the MIM waveguide and the horizontal B-Type cavity. The normalized HZ field is affected by the difference value between the outer radii R1 and R2 of the semi-circle of the horizontal B-Type cavity greatly. The influence of every element of the whole system on sensing properties is discussed in depth. The sensitivity of the proposed structure can obtain 1548 nm/RIU (refractive index unit) with a figure of merit of 59. The proposed structure has potential in nanophotonic sensing applications.

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Features of the modern development of metal‐insulator‐metal waveguide based plasmonic sensors

Butt

2024

Applied Research

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Plasmonic sensors based on metal‐insulator‐metal (MIM) waveguides are renowned for their miniaturization and high sensitivity in various sensing applications. A broad spectrum of researchers is numerically investigating the characteristics of MIM waveguide‐based plasmonic sensors with diverse cavity shapes. However, practical demonstrations of these sensors have not yet been realized, primarily due to the overlooked aspect of the light coupling mechanism into these waveguides. In this context, two distinct methods for coupling light into and out of plasmonic chips based on MIM waveguides are presented.

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Fano resonance in a MIM waveguide with double symmetric rectangular stubs and its sensing characteristics

Cited by 92 publications

References 37 publications

A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator

A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator

Study on the Nanosensor Based on a MIM Waveguide with a Stub Coupled with a Horizontal B-Type Cavity

Features of the modern development of metal‐insulator‐metal waveguide based plasmonic sensors

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