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A new organic dye, trans-4-[p-(N-hydroxyethyl-N-ethylamino)styryl]-N-methyl- pyridinium p-toluene sulfonate(HEASPS) has been synthesized and its structure has been determined. Pumped with a 1064 nm, 50 ps laser pulses, 0.05 mol/L IIEASPS/DMF solution showed the two-photon pumped (TPP) output/input efficiency of 9. 1% which is higher than that of known TPP laser dyes trans-4-[P-(N-hydroxyethyl-N-methylamino)styryl]-N-methylpyridinium iodide (ASPI) and trans-4-(p-(N-hydroxyethyl-N-methlamino)styryl]-N-methylpyridinium p- toluene sulfonate (HMASPS) at the same experimental conditions.
A new organic dye, trans-4- [p- (N-hydroxyethyl-N-ethylamino) styryl] -N-methyl- pyridinium p- toluene sulfonate (HEASPS) has been synthesized and its structure has been determined. Pumped with a 1064 nm, 50 ps laser pulses, 0.05 mol / L IIEASPS / DMF solution showed the two-photon pumped (TPP) output / input efficiency of 9. 1% which is higher than that of known TPP laser dyes trans-4- [P- N-methylpyridinium iodide (ASPI) and trans-4- (p- (N-hydroxyethyl-N-methylamino) styryl] -N-methylpyridinium p- the same experimental conditions.