Ultrafast energy migration in chromophore shell-metal nanoparticle assemblies

Study is presented to show that chromophore-metal particle assembly has impressive two-photon properties, and the level of interaction between chromophores may be related to formation of specific geometric domains on the metal surface. The evidence for ultrafast energy migration is seen in this chromophore shell-metal nanoparticles system, which is of potential interest for light harvesting and sensing applications.