Abstract

Much effort has been devoted to a search for material having a large third-order optical nonlinearity sufficient to realize ultra-fast optical signal processing and optical computing etc. π-conjugated organic materials, especially conductive polymers such as polydiacetylenes, seem to attract a principal interest in this field because of their fast responces and large optical nonlinearities.¹⁾ Those known materials put origin of their optical nonlinearities on intramolecular electronic polarization. Our own scope is, however, that supramolecular electronic polarization is possibly an efficient origin of optical nonlinearity.²⁾

© 1988 Optical Society of America