A nonlinear optical chromophore having the formula:
wherein, independently at each occurrence: π1 is absent or a π-bridge; π2 is absent or a π-bridge; D is a donor; A is an acceptor; X is O or S; and R is an alkyl, aryl, heteroalkyl, or heteroaryl group, and compositions and devices comprising it.
一种非线性光学发色团,其
化学式为
其中,在每次出现时:π1 不存在或为π桥;π2 不存在或为π桥;D 为供体;A 为受体;X 为 O 或 S;R 为烷基、芳基、杂烷基或杂芳基,以及包含它的组合物和装置。