The 'transHcis' reversible photoisomerization process tends to align azobenzene derivatives perpendicular to the polarization direction of the pumping beam. It is shown that in the trans-rcis optical transition the cis state is aligned perpendicular to the pumping light polarization. This is shown f
On the explanation of the biphotonic processes in polyesters containing azobenzene moieties in the side chain
✍ Scribed by P. S. Ramanujam; Søren Hvilsted; Ingo Zebger; Heinz W. Siesler
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 326 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
An explanation for the recently observed biphotonic transitions in side‐chain polyesters with azobenzene moieties is given on the basis of experimental observations from optical and Fourier‐Transform infrared absorption spectra. We present for the first time experimental evidence that a red laser beam at 633 nm causes cis‐trans (Z—E) transitions in azobenzene.
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