Enhanced Plasmonic Resonance Characteristics of AgNRs-Gold Film Hybrid System.

ABSTRACT: In recent years, the plasma gap resonance maintained by metal-film-coupled nanostructures has attracted extensive attention. This mainly originates from its flexible control of the spectral response and significantly enhanced field strength at the nanoparticle-film junction. In the present study, the tunability of local surface plasmon resonances (LSPRs) of nanorods coupled to a gold film is studied theoretically. To this end, the plasmonic resonances in the nanostructure of individual silver nanorod-gold film (AgNR-film) with different parameters are investigated. Obtained results show that the refractive index sensitivity (S) of nanostructures to the environment increases as the aspect ratio (A _r ) of nanostructures increase. It is found that when the aspect rati

SUBMITTER: Yin Y 

PROVIDER: S-EPMC7859493 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature