Nonlinear optical materials with reduced aromaticity and bond length alternation

摘要

Compositions for use in non-linear optical devices. The compositions have high first molecular electronic hyperpolarizability (&bgr;) and therefore display high second order non-linear optical properties when incorporated into non-linear optical devices. The acceptor and donor groups which are used in the compositions, along with the &pgr;(pi)-bridge length is chosen to optimize second-order non-linear optical responses.