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Proceedings Paper

Photoanisotropic Red Light Sensitive Dye - Polymer Systems
Author(s): Natalia Tomova; Ludmila Nikolova; Violeta Dragostinova; Todor Todorov
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Paper Abstract

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:

Paper Details

Date Published: 12 April 1990
PDF: 7 pages
Proc. SPIE 1183, Holography '89, (12 April 1990); doi: 10.1117/12.963824
Show Author Affiliations
Natalia Tomova, Bulgarian Academy of Sciences (Bulgaria)
Ludmila Nikolova, Bulgarian Academy of Sciences (Bulgaria)
Violeta Dragostinova, Bulgarian Academy of Sciences (Bulgaria)
Todor Todorov, Bulgarian Academy of Sciences (Bulgaria)

Published in SPIE Proceedings Vol. 1183:
Holography '89
Yuri N. Denisyuk; Tung H. Jeong, Editor(s)

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