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Proceedings Paper

Holographic security media prepared from photochromic fluorescent films
Author(s): Jeonghun Kim; Eunkyoung Kim
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Paper Abstract

Holographic recording using a multi-functional photopolymer was explored for securities and anticounterfeit. The preparation of photofunctional photopolymer film was based on monomers and photochromic fluorescent material, which provides information recording and security of the information, respectively. The content of the monomer and photochromophore for such photopolymer film was optimized to give high diffraction efficiency and high photochromic contrast. A highly secure recording and reading method was suggested for the recorded information, based on diffraction, color and fluorescence change.

Paper Details

Date Published: 21 October 2008
PDF: 10 pages
Proc. SPIE 7118, Optical Materials in Defence Systems Technology V, 71180F (21 October 2008); doi: 10.1117/12.801398
Show Author Affiliations
Jeonghun Kim, Yonsei Univ. (South Korea)
Eunkyoung Kim, Yonsei Univ. (South Korea)

Published in SPIE Proceedings Vol. 7118:
Optical Materials in Defence Systems Technology V
James G. Grote; Francois Kajzar; Mikael Lindgren, Editor(s)

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