Visible-Range Double Fano Resonance Metal–Insulator-Metal Plasmonic Waveguide for Optical Refractive Index Sensing

Tavana, Shahab; Bahadori-Haghighi, Shahram

doi:10.1007/s11468-022-01738-0

Cited by 19 publications

(5 citation statements)

References 62 publications

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“…Where, FWHM stands for the full width at half maximum, and l res is the resonant wavelength, we calculated the FOM and Q values for three different structures, the maximum FOM and Q value are about 57.8, and 65.9, respectively. Table 1 shows the sensing comparison to other related structures [39][40][41][42][43][44][45][46][47]. The result of the present PIA structure is relatively good compared to previous structures, the RI sensitivity is only inferior to [45], while the GC sensitivity is the best.…”

Section: Geometry and Simulation Methodsmentioning

confidence: 80%

Gas concentration and refractive index sensor based on plasmonic induced absorption in metal-insulator-metal waveguide coupled with arc resonators structure

Tang,

Li,

Chen

et al. 2024

Phys. Scr.

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In this paper, the plasmonic induced absorption (PIA) effect is numerically studied in a plasmonic metal-insulator-metal (MIM) waveguide coupled with disk and arc-shaped resonators. The PIA spectrum characteristics and magnetic field distributions are investigated by the Finite difference-time domain method (FDTD) method, the PIA effect originated from the coupling of two resonance modes excited by the disk resonator and the arc-shaped resonator. The coupling mode theory (CMT) is used to fit the PIA transmission spectrum, and the calculated result fits well with the simulated spectrum. A double PIA spectrum can be observed by introducing another arc-shaped resonator both on the same or the opposite side. Three different structures are designed to achieve the PIA effect, and we found the PIA response can be easily tuned by altering the structure’s parameters. Three structures are designed and compared, the PIA spectra exhibit high refractive index (RI) sensing with maximum sensitivity of . Besides, the proposed structure can also be used as a gas concentration (GC) sensor when the polyhexamethylene biguanide (PHMB) is introduced, a maximum sensitivity of 142.1 pm/ppm is achieved for the proposed structure II, the maximum figure of merit (FOM) and Q value are 57.8 and 65.9, respectively. Therefore, the results represented in this paper will be beneficial in the fields of high-performance refractive index and gas sensors.

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Section: Geometry and Simulation Methodsmentioning

confidence: 80%

Gas concentration and refractive index sensor based on plasmonic induced absorption in metal-insulator-metal waveguide coupled with arc resonators structure

Tang,

Li,

Chen

et al. 2024

Phys. Scr.

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“…A target analyte, such as a biomolecule or gas, may be present close to the WG and cause this change in RI. [ 7,40 ]…”

Section: Resultsmentioning

confidence: 99%

“…A target analyte, such as a biomolecule or gas, may be present close to the WG and cause this change in RI. [7,40] A plasmonic RI sensor with a RI sensitivity of 596 nm RIU À1 and a figure of merit of 7.5 was developed by Zhang et al using MIM WG-coupled double rectangular cavities. [41] Using a MIM stub resonator and plasmonic square cavity resonator, Yun et al demonstrated a device with a 938 nm RIU À1 sensitivity to RI.…”

Section: Resultsmentioning

confidence: 99%

“…[3,4] These are appealing for application in a wide range of fields, including nanophotonics, biosensing, electronics, imaging, and many more. [5][6][7] SPPs are tightly bonded to the metal-dielectric contacts, penetrating as deep as 10 nm (the skin depth) in metal and frequently more than 100 nm in the dielectric material. For use in integrated photonic circuits, the metal-insulator-metal (MIM) waveguide (WG) system is one of the most frequently used plasmonic-based structures.…”

Section: Introductionmentioning

confidence: 99%

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Metal‐Insulator‐Metal Waveguide Plasmonic Sensor System for Refractive Index Sensing Applications

Butt

Kazanskiy

Хонина

2023

Advanced Photonics Research

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Plasmonic sensors are well known for their miniaturized size and high sensitivity. Herein, a numerical analysis of a metal‐insulator‐metal (MIM) waveguide (WG) for refractive index (RI) sensing applications is proposed. The sensing device is composed of a MIM bus WG with a semicircular formation side coupled to a semicircular cavity. This configuration provides a transmission dip with a high extinction ratio as compared to the standard MIM WG side‐coupled to a semicircular cavity. Moreover, the mode converters are also embedded in the sensing system solving the obstacle of light coupling to the MIM plasmonic WG. The sensitivity of the proposed device is ≈941.33 nm RIU−1, making it a promising candidate to be employed in point‐of‐care (POC) testing. This typically involves the use of portable or handheld diagnostic devices that can quickly analyze samples of blood, urine, or other bodily fluids to diagnose diseases or conditions such as infections, diabetes, or heart disease.

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“…Because of the interaction between the narrowband modes of the SRR and the broadband modes of the SCRC, this optical sensor could generate and support a double Fano resonance. Its maximum sensitivity and Figure of Merit (FOM) were 579 nm/RIU and 12.46, respectively [24]. Shen S et al explored the transmission characteristics of a MIM waveguide structure based on a square ring resonator for SRS in a waveguide system.…”

Section: Introductionmentioning

confidence: 99%

A Nanosensor Based on Optical Principles for Temperature Detection Using a Gear Ring Model

Li,

Yan,

Cui

et al. 2024

Photonics

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Based on the characteristics of plasmonic waveguides and resonators, we propose a refractive index (RI) sensor that couples a gear ring with a metal–insulator–metal (MIM) waveguide. Using the finite element method (FEM), we conduct extensive spectral analysis of the sensor’s properties in the near-infrared spectrum. Furthermore, we investigate the structural parameters affecting the refractive index sensing characteristics. This study reveals that the complexity of the ring cavity edge can significantly enhance the sensitivity of the nanosensor. Optimal structural performance parameters are selected when the number of gears is six, resulting in a sensitivity of 3102 nm/RIU and a Figure of Merit (FOM) of 57.4 for the sensing characteristics of the gear ring. It possesses the advantages of small size and high sensitivity. This nanoscale sensor design demonstrates high sensitivity in the field of industrial material temperature detection.

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Visible-Range Double Fano Resonance Metal–Insulator-Metal Plasmonic Waveguide for Optical Refractive Index Sensing

Cited by 19 publications

References 62 publications

Gas concentration and refractive index sensor based on plasmonic induced absorption in metal-insulator-metal waveguide coupled with arc resonators structure

Gas concentration and refractive index sensor based on plasmonic induced absorption in metal-insulator-metal waveguide coupled with arc resonators structure

Metal‐Insulator‐Metal Waveguide Plasmonic Sensor System for Refractive Index Sensing Applications

A Nanosensor Based on Optical Principles for Temperature Detection Using a Gear Ring Model

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