Strong increase in the effective two-photon absorption cross-section of excitons in quantum dots due to the nonlinear interaction with localized plasmons in gold nanorods

The effective two-photon absorption in the hybrid material comprising quantum dots (QDs) in a poly(methyl methacrylate) (PMMA) matrix and gold nanorods (GNRs) was increased 12-fold due to nonlinear energy transfer from GNR plasmons to QD excitons.