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Proceedings Paper

Linear response deviations in photopolymers
Author(s): M. Ortuño; C. Neipp; E. Fernández; M. L. Álvarez; A. Beléndez
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Paper Abstract

In holographic recording photopolymers the diffraction efficiency develops according to Kogelnik expression during hologram recording stage. In the ideal situation, the curve of diffraction efficiency versus energetic exposure has a linear zone, although it is usual to find examples of deviations to this behavior. In this investigation we study different cases in which there are deviations to ideal behavior, proposing different hypothesis in order to explain the situations that can be experimentally obtained. The more important deviation experimentally observed is when the first maximum is lower than the second one in the diffraction efficiency versus exposure curve during recording. A main hypothesis is presented, which is related to the dye concentration into the layer and the molecular weight of the polymer chains generated in the polymerization process.

Paper Details

Date Published: 19 May 2009
PDF: 11 pages
Proc. SPIE 7358, Holography: Advances and Modern Trends, 735815 (19 May 2009); doi: 10.1117/12.820449
Show Author Affiliations
M. Ortuño, Univ. de Alicante (Spain)
C. Neipp, Univ. de Alicante (Spain)
E. Fernández, Univ. de Alicante (Spain)
M. L. Álvarez, Univ. de Alicante (Spain)
A. Beléndez, Univ. de Alicante (Spain)

Published in SPIE Proceedings Vol. 7358:
Holography: Advances and Modern Trends
Miroslav Miler; Miroslav Hrabovský, Editor(s)

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