Abstract

Progress in the field of optical data processing and storage depends in great extent on development of the new effective nonlinear media [1]. Azo dye containing side-chain LC polymers are thought to be one of the perspective candidates for different optical applications because of their chemical stability and high nonlinear susceptibilities [2]. An attractive feature is the combination of liquid crystalline (LC) properties and optical nonlinear properties originating from light induced trans-cis isomerization of chromophores. The substance may be attributed to a class of two component nonlinear systems with vigorous intermolecular interaction. Behaviour of mesogenic (matrix) and dye subsystems are strongly correlated via the internal field. Thus, acting on the mesogenic subsystem by applying electric field and heating, it is possible to control the process of photo induced anisotropy formation in the polymeric bulk. However, the influence of the mentioned factors on the performance of the media in optical information systems is not clear yet.

© 1998 IEEE