Applied Physics B

, Volume 70, Issue 6, pp 863-865

Photoinduced deformation of azobenzene polyester films

  • D. BublitzAffiliated withInstitut für Angewandte Optik, Friedrich-Schiller-Universität Jena, Fröbelstieg 1, 07743 Jena, Germany
  • , M. HelgertAffiliated withInstitut für Angewandte Optik, Friedrich-Schiller-Universität Jena, Fröbelstieg 1, 07743 Jena, Germany
  • , B. FleckAffiliated withInstitut für Angewandte Optik, Friedrich-Schiller-Universität Jena, Fröbelstieg 1, 07743 Jena, Germany
  • , L. WenkeAffiliated withInstitut für Angewandte Optik, Friedrich-Schiller-Universität Jena, Fröbelstieg 1, 07743 Jena, Germany
  • , S. HvilstedAffiliated withRiso National Laboratory, Frederiksborgvej 399, P.O. Box 49, 4000 Roskilde, Denmark
  • , P.S. RamanujamAffiliated withRiso National Laboratory, Frederiksborgvej 399, P.O. Box 49, 4000 Roskilde, Denmark

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Abstract.

We investigate two types of azobenzene side-chain polyesters which have shown opposite behaviour in light-induced surface grating formation experiments. Thin films of these polymers prepared on a water surface undergo opposite changes of shape under the influence of polarized light. We propose this deformation to be responsible for the surface relief gratings.

PACS: 42.70.Gi; 42.70.Jk