Abstract

The structural and chemical stability of nonlinear-optical films deposited by the Langmuir–Blodgett technique have been characterized by second-harmonic generation and linear absorption measurements. Two new compounds, a tricyanovinyl aniline and a tricyanovinyl azo dye, both possessing large second-order molecular susceptibilities, have been synthesized and transferred as monolayers from the air–water interface to solid substrates by using the Langmuir–Blodgett technique. Both compounds form monolayers that can be transferred to a solid substrate. The azo dye is the superior material in that it forms films with stable orientational order.

© 1989 Optical Society of America

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