Abstract
Organic molecules with π electron systems and asymmetrical charge distribution are interesting tor use in quadratic nonlinear optics. Calix[4]arenes are cyclophanes that consist of four phenol moieties connected by methylene bridges. Functionalization of these phenols allows the combination of four D-π–A units within a single molecule. The increase in the number of D-π-A systems in a calix[4]arene molecule is accompanied by an enhancement of the molecular hyperpolarizability and the dipole moment and by a blue shift of the charge-transfer absorption band. Different substituted calix[4Jarene compounds have been synthesized and examined.
© 1993 Optical Society of America
PDF ArticleMore Like This
M. Ohashi, T. Kondo, R. Ito, S. Fukatsu, Y. Shiraki, K. Kumata, and S. S. Kano
MD2 Nonlinear Optics (NLO) 1992
E. Toussaere and J. Zyss
WA.1 Organic Thin Films for Photonic Applications (OTF) 1993
A. G. Vardanyan, O. F. J. Noordman, N. F. van Hulst, and J. Greve
QTuG56 European Quantum Electronics Conference (EQEC) 1994