Abstract

In order to apply organic nonlinear optical materials to the SHG devices for semiconductor lasers, cut-off wavelength of the materials should be shorter than around 400 nm since the wavelength of commonly used semiconductor lasers is about 800 nm. Unfortunately, in the case of organic materials, enlargement of nonlinearity(hyperpolarizability) and shortening of the cut-off wavelength are the tradeoff relations. To develop novel organic nonlinear optical materials both with large nonlinearity and short cut-off wavelength, we used a molecular design method and chose heteroconjugate molecules as target materials.

© 1992 Optical Society of America