Strongly coupled plasmonic systems on optical fiber sensors: A study on nanomaterial properties

Abstract New paths to increase the sensing performance of plasmonic sensors have been reported in recent years. There are several methodologies achieve such purpose, namely by optimizing nanostructure, nanomaterial and even platform. Recently use nanoparticles over thin films shown sensitivity enhancement, when compared a bare film. Nevertheless, combination between NP film has not studied. In this work it was studied materials order optimize only refractometric but also decrease resultant band width. It found that for Au, Ag Cu films, deposition resulted an overall figure merit (FOM) increase. The larger FOM obtained film, from 42 162 coupled Si nanoparticles. greater achieved nanoparticle, with 1745 3230 nm/RIU.