Plasmonic and Surface Plasmon Research

Surface plasmons are collective oscillations of electrons at the boundary between a metal and a dielectric, and researchers have learned to engineer nanostructures—including metallic nanoantennas, graphene layers, and metamaterials—that confine and amplify light far below its classical diffraction limit. In biomedical engineering, that extreme light concentration translates into biosensors capable of detecting single molecules or disease biomarkers at vanishingly low concentrations, as well as optical modulators and terahertz devices with response times and sensitivities difficult to achieve by other means. Active research is now pushing toward dynamically tunable plasmonic systems—where the resonant response can be switched or steered in real time—and toward understanding how quantum and nonlocal effects reshape device behavior as feature sizes shrink to just a few nanometers. Integrating these components reliably into clinical or wearable platforms, while managing heat dissipation and fabrication variability at the nanoscale, remains a central unsolved challenge.

Works

65,756

Total citations

1,260,972

Keywords

PlasmonicsNanophotonicsSurface PlasmonsGrapheneMetamaterialsNanoantennas