http://www.cnr.it/ontology/cnr/individuo/prodotto/ID280911
Molecular model for light-driven spiral mass transport in azopolymer films (Articolo in rivista)
- Type
- Label
- Molecular model for light-driven spiral mass transport in azopolymer films (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevLett.110.146102 (literal)
- Alternative label
Ambrosio, A.a , Maddalena, P.ab, Marrucci, L.ab (2013)
Molecular model for light-driven spiral mass transport in azopolymer films
in Physical review letters
(literal)
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- Ambrosio, A.a , Maddalena, P.ab, Marrucci, L.ab (literal)
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- a CNR, SPIN, Complesso Universitario di Monte Sant'Angelo, 80126 Napoli, Italy
b Dipartimento di Fisica, Università di Napoli Federico II, Complesso Universitario di Monte Sant'Angelo, 80126 Napoli, Italy (literal)
- Titolo
- Molecular model for light-driven spiral mass transport in azopolymer films (literal)
- Abstract
- Azopolymer films exposed to nonuniform illumination exhibit a phenomenon of light-induced mass transport, leading to the formation of permanent relief patterns on the film surface. Its underlying microscopic mechanism remains unclear, despite many years of research effort. Here we introduce a model of the mass migration process based on anisotropic light-driven molecular diffusion. A key ingredient of our model is an enhanced molecular diffusion in proximity of the free polymer surface, which is essential for explaining, in particular, the recently observed spiral-shaped reliefs resulting from vortex-beam illumination. © 2013 American Physical Society. (literal)
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- Autore CNR
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