Heating of dye-doped microparticles filled with aggregated metal-containing nanostructures by optical radiation

Abstract

It is found that localizing hot spots inside a resonance microparticle doped with a dye and filled with nanosized metal particles strongly affects heating of these particles and of the entire microparticle. If hot spots lie in the resonance region in the dark or illuminated hemisphere of the microparticle, the microsphere is heated considerably faster. Hot spots in the dark hemisphere of the microparticle may be heated to a maximal temperature sooner than the resonance region in the dark hemisphere.