Triple narrow-spectrum enhanced multiparameter sensor based on asymmetric MIM waveguide for gas and liquid sensing

Zhao, Haojun; Du, Jiansen; Wang, Shang; Wang, Xi; Zhang, Tiqiang; Yu, Ruitao; Chi, Zongtao; Wang, Bin

doi:10.1016/j.optlastec.2024.110754

Cited by 8 publications

(2 citation statements)

References 34 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%

“…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. The FOM and Q value of the proposed device is excellent, it should be pointed out that the FOM calculation formulas are different in [44].…”

Section: Geometry and Simulation Methodsmentioning

confidence: 80%

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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%

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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Review of Innovative Cavity Designs in Metal–Insulator-Metal Waveguide-Based Plasmonic Sensors

Butt

2024

Plasmonics

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Plasmonic sensors utilizing metal–insulator-metal (MIM) waveguides represent a significant advancement in sensing technology due to their high sensitivity and versatility. These sensors leverage surface plasmon polaritons to detect minute changes in the surrounding environment, making them highly effective for a range of applications. For instance, they can precisely measure variations in the Refractive Index, which is crucial for monitoring chemical concentrations and biological interactions. Additionally, MIM waveguides can be adapted to sense temperature fluctuations, pressure changes, and the presence of specific gases, providing valuable insights in fields such as environmental surveillance, medical diagnostics, and industrial processes. In recent years, a variety of sensor cavity shapes have been proposed to enhance sensor performance. This review examines how these innovative geometries optimize sensor cavities to achieve unprecedented levels of resolution and sensitivity, underscoring their transformative potential across a broad spectrum of scientific and practical applications.

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Triple independently tunable sensing with multiple resonances based on metal-insulator-metal waveguide

Ren,

Qu,

Sun

et al. 2024

Micro and Nanostructures

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Triple narrow-spectrum enhanced multiparameter sensor based on asymmetric MIM waveguide for gas and liquid sensing

Cited by 8 publications

References 34 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

Review of Innovative Cavity Designs in Metal–Insulator-Metal Waveguide-Based Plasmonic Sensors

Triple independently tunable sensing with multiple resonances based on metal-insulator-metal waveguide

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