Thermo-Optical Effects in Plasmonic Metal Nanostructures

The effects of the temperature on surface plasmon resonance (SPR) in noble metal nanoparticles at various temperatures ranging from 77 to 1190 K are reviewed. A increase results an appreciable red shift and leads a broadening SPR (NPs). This observed thermal expansion along with electron-phonon scattering rate rising emerge as dominant physical mechanisms producing SPR. Strong dependence enhanced photoluminescence silver (Ag) copper (Cu) NPs is observed. quantum yield Ag decreases increases, due decrease enhancement resulting rate. An anomalous Cu was also observed; increases temperature. interplay between interband transitions plays critical role this effect. surface-plasmon involved laser heating dense 2D layer gold (Au) Au water colloids examined. strong NP occurs, when frequency approaches finding supports resonant plasmonic character NPs. sharp blue colloidal exceeding boiling point indicates vapor-bubble formation near