Two-photon absorption and frequency - upconversion properties of a new organic dye HMASPS

摘要

Two - photon absorption (TPA) and frequency - upconversion properties of a new upconversion laser dye trans -4-[N-hydroxyethyl-N-methyl-amino] styry;l]-N-meth - ylpyridinium toluene-p-sulfonate (abbreviated to HMASPS) were reported in this nots. The linear absorption, TPA, sin - gle - photon induced fluorescence, TPA induced fluorescence and TPA induced upconverted lasing spectra of HMASPS solution in dimethyl formamide (abbreviated to DMF) were measured at room temperature.