Surface Plasmon Resonance-Mediated Colloid Gold Monolayer Junctions

摘要

Surface plasmon resonances in metallic nanoparticles are being exploited for a variety of applications,including molecular sensing and tagging,focusing or guiding light,near-field optical microscopy,and other subwavelength photonics.The strong interactions of metallic nanoparticles with visible light originate from the excitation of collective oscillations of conduction electrons within these particles,an elementary excitation termed"surface plasmon"(SP).