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Stochastic model for photoinduced surface relief grating formation through molecular transport in polymer films

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6 Author(s)
Juan, M.L. ; Laboratoire de Nanotechnologie et d’Instrumentation Optique, ICD CNRS FRE 2848, Université de Technologie de Troyes, BP 2060 Troyes, France ; Plain, J. ; Bachelot, R. ; Royer, P.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2999625 

We use a stochastic model to study photoinduced surface relief grating (SRG) formation due to molecular transport in azobenzene polymer films. The model is shown to reproduce the essential experimental features of SRG formation. In particular, it predicts SRG formation under both p and s polarizations, and the double peaked topographies that can occur at early times of the process. The evolving molecular positions and orientations during exposure are also followed, providing a useful mechanistic picture of SRG dynamics.

Published in:
Applied Physics Letters  (Volume:93 ,  Issue: 15 )

Date of Publication: Oct 2008

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