Large second‐order optical nonlinearities and enhanced thermal stabilities in extended thiophene‐containing compounds

Abstract

The optimiztion of second order optical nonliearity requires molecules with a specific degree of ground‐state polarization. In this connection, studies of extended thiophne‐containing compunds with acceptors that gain aromaticity on charge separation, such as the molecule shown, are described. As it also exhibits good therma stability, this compound is a promising candidate for electro‐optic poled polymer applications. magnified image