Transient Optical Properties of Gold Square Nanopore Arrays Modulated Based on Plasmonics
To clarify the influence mechanism of surface plasmon on transient optical properties of metal nanostructures,the transient optical response of gold square nanopore arrays under different excitation conditions was studied through electromagnetic field-heat transfer coupling simulation.The study found that resonance excitation of plasmon modes could lead to stronger and faster transient optical responses than non-resonant excitation,and there were significant differences in the responses at different plasmon modes.The study provides a novel approach for designing stronger and faster all-optical modulation devices and contributes to the revelation of transient optical phenomena related to surface plasmon resonance from the perspective of physical mechanisms.
nano photonicsultrafast dynamicsoptical field modulationultrafast spectroscopy