Abstract

Fully conjugated donor-acceptor substituted organic molecules are known as promising candidates for future applications in all-optical signal processing, frequency conversion, and ultrafast electro-optics. In order to optimize the nonlinear optical response of such molecules, it is important to know the influence of different donors and acceptors, the spatial molecular structure, and the type of conjugation. Derivatives of tetraethynylethene (TEE) are an interesting class of donor-acceptor substituted conjugated molecules, which allow the study of the contribution of different conjugation paths to the nonlinear optical properties. (Fig. 1)

© 1998 IEEE