A novel organic chromophore 4, 4'-bis(9-carbazyl-trans-styryl)-biphenyl (BCSBP) has been synthesized and characterized by IHNMR and elemental analysis. Three-photon absorption(3PA) induced upconvention fluoresc...A novel organic chromophore 4, 4'-bis(9-carbazyl-trans-styryl)-biphenyl (BCSBP) has been synthesized and characterized by IHNMR and elemental analysis. Three-photon absorption(3PA) induced upconvention fluorescence was observed and large 3PA cross section as high as 10^-74 cm^6 s^2 was obtained for nanosecond laser pulses at 1064 nm from optical limiting measurements.展开更多
基金This work was supported by the National Natural Science Foundation of China(No:50025309,and No:90201016).
文摘A novel organic chromophore 4, 4'-bis(9-carbazyl-trans-styryl)-biphenyl (BCSBP) has been synthesized and characterized by IHNMR and elemental analysis. Three-photon absorption(3PA) induced upconvention fluorescence was observed and large 3PA cross section as high as 10^-74 cm^6 s^2 was obtained for nanosecond laser pulses at 1064 nm from optical limiting measurements.