Two-photon pumped emission of polymeric thin film doped with dicyanopyranone derivative†
Abstract
Two-photon pumped up-conversion emission of polymeric thin film doped with an organic fluorophore dye (1) is described. It is found that 1 exhibits strong two-photon pumped up-conversion emission in polymeric thin film, and the mechanism shows that the up-conversion emission results from efficient two-photon absorption.