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12 April 1990 Photoanisotropic Red Light Sensitive Dye - Polymer Systems
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Proceedings Volume 1183, Holography '89; (1990)
Event: Holography '89, 1989, Varna, Bulgaria
Disazobenzols are dyes of the type: Y X-cc:-N=N a N=N 0 Z Like in monoazobenzols, their molecules exist both in trans- and cis-forms, irradiation with light in the transabsorption band causing transcisisomerization. This changes the absorption spectrum (hence, the refractive index) of the samples, and therefore, such systems can be used for optical recording. Normally, the transabsorption band of these dyes is in the longer wavelengths than that of monoazodyes. The aim of our investigation was to produce a rigid solution of a dye in a polymer, suitable for optical recording in the red region. Most suitable among the great number of investigated dyes proved to be:
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Natalia Tomova, Ludmila Nikolova, Violeta Dragostinova, and Todor Todorov "Photoanisotropic Red Light Sensitive Dye - Polymer Systems", Proc. SPIE 1183, Holography '89, (12 April 1990);

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