Light-induced isomerization and photo-orientation in azo and stilbene polymers

Thomas Oliver Fuhrmann; Matthias Kunze; Ilka Lieker; Andreas Stracke; Joachim Heinz Wendorff

doi:10.1117/12.256188

1 November 1996 Light-induced isomerization and photo-orientation in azo and stilbene polymers

Thomas Oliver Fuhrmann, Matthias Kunze, Ilka Lieker, Andreas Stracke, Joachim Heinz Wendorff

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Proceedings Volume 2852, Nonlinear Optical Properties of Organic Materials IX; (1996) https://doi.org/10.1117/12.256188
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The orientational order of amorphous or liquid crystalline polymers with azo or stilbene chromophores can be altered by polarized light. This photoorientation process is explained by a mechanism based on photosensitive trans-cis- isomerization cycles. Monte-Carlo simulations of the process in combination with quantum mechanical calculations show the time-evolution of the photoinduced refractive index change. The different dynamic behavior of various chromophores which is observed experimentally can be explained by the photochemical properties of the dyes. The application of the materials for optical storage and holographic optical elements is discussed.

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Thomas Oliver Fuhrmann, Matthias Kunze, Ilka Lieker, Andreas Stracke, and Joachim Heinz Wendorff "Light-induced isomerization and photo-orientation in azo and stilbene polymers", Proc. SPIE 2852, Nonlinear Optical Properties of Organic Materials IX, (1 November 1996); https://doi.org/10.1117/12.256188

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