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A new organic dye, trans-4-[4’-(N-hydroxyethyl-N-methylpyri- dinium p-toluene sulfonate (HMASPS) has been synthesized and its structure has been determined. Pumped with a 1064 urn, 50 ps laser pulses, 0.05 mol/L HMASPS/DMF solution showed the two- photon pumped (TPP) output/input efficiency of 8.4% which is higher than that of trans-4-[p-(N- hydroxyethyl-N-methylamino) styryl]-N-methylpyridinium iodide (ASPI)1 at the same pump level.
A new organic dye, trans-4- [4 ’- (N-hydroxyethyl-N-methylpyri-dinium p-toluene sulfonate (HMASPS) has been synthesized and its structure has been determined. Pumped with a 1064 urn, 50 ps laser pulses , 0.05 mol / L HMASPS / DMF solution showed the two-photon pumped (TPP) output / input efficiency of 8.4% which is higher than that of trans- 4- [p- (N- hydroxyethyl- N- methylamino) styryl] N-methylpyridinium iodide (ASPI) 1 at the same pump level.