Abstract

Organic nonlinear optical materials have been paid much attention for possessing the large second and third order susceptibilities compared to the inorganic compounds. Many researches have been made as to the development of organic molecules having the large molecular hyperpolarizabilities and the assembling techniques from organic molecules into the materials for the photonic applications so far.¹⁾ However there have been few attempts to control the optical nonlinearity by laser irradiation except for the Garito's works in which the third order optical nonlinearity of diphenylhexatriene was enhanced when it was irradiated by picosecond pulses.²⁾

© 1993 Optical Society of America