Holographic gratings in organic photochromics: nonlinear and switchable gratings

Thiemo Kardinahl; Hilmar Franke

doi:10.1117/12.238548

22 April 1996 Holographic gratings in organic photochromics: nonlinear and switchable gratings

Thiemo Kardinahl, Hilmar Franke

Proceedings Volume 2688, Holographic Materials II; (1996) https://doi.org/10.1117/12.238548
Event: Photonics West '96, 1996, San Jose, CA, United States

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.

Citation Download Citation

Thiemo Kardinahl and Hilmar Franke "Holographic gratings in organic photochromics: nonlinear and switchable gratings", Proc. SPIE 2688, Holographic Materials II, (22 April 1996); https://doi.org/10.1117/12.238548

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