High-sensitivity multiple fano resonances induced by MIM multimode plasmonic sensor

Tailoring Plasmonic Waveguide-Coupled Cavities for CO2 Sensing

Plasmonic devices can guide and control light on the subwavelength scale, but their optical behavior is sensitive to minute changes in geometrical/material parameters; however, it requires a rigorous theoretical framework to obtain a high level of structural control and optimize their performance. This study investigat...

High-sensitivity plasmonic refractive index sensor based on a split disc–ring resonator

A highly sensitive plasmonic refractive index (RI) sensor based on a split disc–ring resonator (SDRR) is presented and numerically analyzed. The sensor comprises a split disc surrounded by a split ring, both fabricated on a SiO₂ substrate. This structure supports coupled plasmonic modes, specifically ‘bright’ and ‘dark...

Numerical spectral analysis of a compact rectangular plasmonic sensor for dual-refractive-index discrimination

Design and engineering of a metal-insulator-metal waveguide plasmonic sensor with high-figure-of-merit for refractive index measurement

High-sensitivity plasmonic sensing of Au-Ag alternating nanograting with Kretschmann configuration

We theoretically investigate an Au-Ag alternating nanograting integrated with a Kretschmann prism-coupled configuration for high-performance plasmonic refractive-index (RI) sensing. Finite-element simulations show that TM-polarized light incident from the BK7 prism side can efficiently excite surface plasmon resonance...

Numerical design and optimization of a metal–insulator–metal plasmonic structure with an asymmetric split-ring resonator for PSA-associated bulk refractive-index characterization