Determination of the Response Time of Photoanisotropy in Azobenzene Side-Chain Polyesters

D. Bublitz, B. Fleck, L. Wenke, P. S. Ramanujam, P.S. Ramanujam, Søren Hvilsted

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We present a method which allows the determination of the response time to polarized light of an azobenzene side-chain polyester. This method is based on the measurement of intensities in dependence on the delay time between a pump and a probe pulse. The described method does not need a very sophisticated time resolving measuring equipment. The time resolution is in the order 10 ps and is comparable with the laser pulse duration. The response time of the azobenzene side-chain polyester E1aP has determined to be about 40 ps. (C) 2000 Elsevier Science B.V. All rights reserved.
Original languageEnglish
JournalOptics Communications
Issue number1-3
Pages (from-to)155-160
Publication statusPublished - 1 Aug 2000


  • photoanisotropic polymers
  • azo-dye doped polymers


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