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An improved method for separating the kinetics of anisotropic and topographic gratings in side-chain azobenzene polyesters

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Abstract.

The induction of anisotropy gratings in side-chain azobenzene polyesters is accompanied by the formation of surface relief. We introduce an improved holographic method to separate the contributions of the anisotropic and the topographic part to the diffraction efficiency by analyzing the polarization of the first-order diffracted beam. The main advantage of this method is that both parts can be determined simultaneously by only one measurement. Furthermore the displacement between both gratings can be determined in a similar manner. Experimental results obtained with two different polyesters are presented.

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Authors and Affiliations

  1. Institut für Angewandte Optik, Friedrich-Schiller-Universität Jena, Fröbelstieg 1, 07743 Jena, Germany (Fax: +49-3641/947-652, E-mail: helgert@pinet.uni-jena.de), , , , , , DE

    M. Helgert, B. Fleck & L. Wenke

  2. Riso National Laboratory, Frederiksborgvej 399, P.O. Box 49, 4000 Roskilde, Denmark, , , , , , DK

    S. Hvilsted & P.S. Ramanujam

Authors
  1. M. Helgert
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  2. B. Fleck
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  3. L. Wenke
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  4. S. Hvilsted
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  5. P.S. Ramanujam
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Additional information

Received: 27 October 1999 / Revised version: 16 February 2000 / Published online: 27 April 2000

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Helgert, M., Fleck, B., Wenke, L. et al. An improved method for separating the kinetics of anisotropic and topographic gratings in side-chain azobenzene polyesters . Appl Phys B 70, 803–807 (2000). https://doi.org/10.1007/PL00021138

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  • DOI: https://doi.org/10.1007/PL00021138

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