SPR Sensor-Based Sensitivity Performance Investigation Using an H-Shaped Model with Supportive Metal Variation

Kamkar, Amrita; Ahmed, Kawsar; Alam, Mirza Sanjida; Al-Zahrani, Fahad Ahmed

doi:10.1007/s11468-021-01391-z

Cited by 11 publications

(2 citation statements)

References 31 publications

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“…The surface shape mainly determines the direction of light transmission, whereas the complex refractive index determines the polarization characteristics of light. The Drude-Lorentz dispersion model fit the permittivity over the entire spectral band well, with each parameter having a clear physical meaning [13,14], which can be expressed as:…”

Section: Spectral Polarization Brdfmentioning

confidence: 99%

Modeling and analysis of spectral polarization BRDF using dispersion model

Huang,

Peng,

Ren

et al. 2024

Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023)

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The bidirectional reflectance distribution function (BRDF) integrates reflection and scattering phenomena to describe the spatial reflection characteristics of the object surface. A modified spectral expression for the complex refractive index of the medium is established using the Drude-Lorentz dispersion model, and it is substituted into the polarization microfacet BRDF to obtain a spectral polarization BRDF(p-BRDF) based on the microfacet theory. Particle swarm optimization algorithm is used to fit the parameters in the model by combining the complex refractive index data and inplane BRDF data of brass, the optimal standard mean squared error of parameter selection is 0.01. The simulated data is highly consistent with the experimental data, and the optimal adjusted 2 R is 0.9854. The results indicate that the spectral p-BRDF model combined with limited experimental data can effectively predict the spatial reflection characteristics of object surfaces.

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Section: Spectral Polarization Brdfmentioning

confidence: 99%

Modeling and analysis of spectral polarization BRDF using dispersion model

Huang,

Peng,

Ren

et al. 2024

Fifth International Conference on Optoelectronic Science and Materials (ICOSM 2023)

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“…The resonance frequency of SPR is extremely sensitive to the refractive index of the outside world, which also lays a certain foundation for the biosensor. A large number of studies show that the biosensor with surface plasmon polaritons (SPP) participation has many advantages, [27][28][29][30][31][32][33][34][35] including but not limited to portability, easy integration, high sensitivity, rapidity, environmental protection, and real-time performance, which will meet the requirements of future development trends. Therefore, many increasing interests are attracted to this promising field.…”

mentioning

confidence: 99%

Surface plasmon polaritons enhanced magnetic plasmon resonance for high-quality sensing

Chen¹,

Liu²,

Zhao³

et al. 2022

Appl. Phys. Express

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We investigate the metamaterials consisting of the top layer U-shaped metallic split-ring resonators (SRRs), the middle thin dielectric layer, and the bottom thick metal film, which can realize high-quality refractive index sensing. When propagating surface plasmon polaritons are introduced, two ultra-narrow-band hybridized modes will appear, whose full width at half maximum can reach up 2.5 nm. Because of ultra-narrow linewidth and huge magnetic field enhancement at hybridized modes, the metamaterials displays very high sensitivity (S = 912 nm/RIU, S* = 95.64/RIU) and large figure of merit (FOM = 364.8, FOM*= 160740.34), which has great potential in the label-free biomedical sensing.

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