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Proceedings Paper

Holographic gratings in organic photochromics: nonlinear and switchable gratings
Author(s): Thiemo Kardinahl; Hilmar Franke
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Paper Abstract

Photochromic dyes like the fulgides `Aberchrome 540' and `Aberchrome 670' have been investigated in the polymer films with respect to the formation of holographic gratings. For high exposure doses the diffraction efficiencies tend to decrease with additional exposure. This is discussed in terms of nonlinear gratings due to the photochromic mechanism in a 2 level model. Two methods for the fabrication of latent photochromic gratings, which can be switched on by a homogeneous noncoherent exposure are discussed.

Paper Details

Date Published: 22 April 1996
PDF: 7 pages
Proc. SPIE 2688, Holographic Materials II, (22 April 1996); doi: 10.1117/12.238548
Show Author Affiliations
Thiemo Kardinahl, Gerhard Mercator Univ. Duisburg (Germany)
Hilmar Franke, Gerhard Mercator Univ. Duisburg (Germany)

Published in SPIE Proceedings Vol. 2688:
Holographic Materials II
T. John Trout, Editor(s)

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