ABSTRACT

We examine the structural dependence of second hyperpolarizability (γ) for nanostar dendritic systems using quantum master equation method including exciton-phonon coupling. The γ(−ω, ω, ω,- ω) values in the DFWM are calculated by the nonperturbative approach. We reveal the effects of structural changes of nanostar dendritic systems, i.e., modification in core monomer and the change in the divergent angle, on the exciton migration and the off- and near-resonant γ values.