Synthesis and stability studies of conformationally locked 4-(diarylamino)aryl- and 4-(dialkylamino)phenyl-substituted second-order nonlinear optical polyene chromophores
Synthesis and stability studies of conformationally locked 4-(diarylamino)aryl- and 4-(dialkylamino)phenyl-substituted second-order nonlinear optical polyene chromophores
A genericapproach to high temperature stable, functionalizedpolyimides for nonlinearoptics has been developed and the resulting polyimides exhibit excellent temporal stability in dipole orientation at elevated temperatures, such as 150degrees}C. Large second harmonic generation coefficients and electro-optic coefficients have been achieved. These polyimides exhibit good solubility in common organic
Synthesis and stability studies of conformationally locked 4-(diarylamino)aryl- and 4-(dialkylamino)phenyl-substituted second-order nonlinear optical polyene chromophores
作者:Katrin Staub、Galina A. Levina、Stephen Barlow、Tony C. Kowalczyk、Hilary S. Lackritz、Marguerite Barzoukas、Alain Fort、Seth R. Marder
DOI:10.1039/b208024a
日期:2003.3.19
A series of chromophores with high second-order nonlinearities has been synthesized; the chromphores consist of triarylamine or dialkylarylamine donors linked by a conformationally locked polyene bridge to a dicyanomethylidene acceptor. The use of bridges of this type, combined with the replacement of dialkylarylamine with triarylamine donors, leads to high thermal stability without adverse affects on the nonlinear optical properties of the chromophores.