23rd International Conference on Optical Fibre Sensors
Optical fiber refractometers based on localized surface plasmon resonance (LSPR) and lossy mode resonance (LMR)
PEDRO J. RIVERO; MIGUEL HERNAEZ; JAVIER GOICOECHEA; IGNACIO R. MATÍAS; FRANCISCO J. ARREGUI
An optical fiber device showing simultaneously two optical phenomena, localized surface plasmon resonance (LSPR) and lossy mode resonance (LMR), is presented here for the first time. It consists of a fragment of stripped optical fiber coated with a polymeric film that includes gold nanoparticles. The absorption peaks related to both phenomena were captured during the deposition of the coating, showing a different evolution. In addition, the behavior of both phenomena to variations of the surrounding medium refractive index (SMRI) was monitored, studying the different responses of LSPR and LMR.
Keywords: Optical Fibers; Coating; Gold; Nanoparticles; Absorption; Surface Plasmons; Refractive Index; Polymers; Polymer optical fibers; Spectroscopy