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A new polymer containing carbazole derivative salt has been synthesized by the copolymerization of 3,6-diformyl-N-hexylcarbazole with N,N′-(1,6-hexyl)bi(4-methyl-pyridinium) ditetraphenylborate. The second-order nonlinear optical coefficients of the corresponding spin-coated polymer film were determined by the Maker fringe method using a Q-switched Nd:YAG laser (1064 nm) after corona-poling. The d...
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