Real-time monitoring of the surface relief formation on azo-polymer films upon near-field excitation (Articolo in rivista)

Type
Label
  • Real-time monitoring of the surface relief formation on azo-polymer films upon near-field excitation (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ambrosio, A; Camposeo, A; Maddalena, P; Patane, S; Allegrini, M (2008)
    Real-time monitoring of the surface relief formation on azo-polymer films upon near-field excitation
    in Journal of microscopy (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ambrosio, A; Camposeo, A; Maddalena, P; Patane, S; Allegrini, M (literal)
Pagina inizio
  • 307 (literal)
Pagina fine
  • 312 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 229 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Ambrosio, A.; Maddalena, P.] Univ Naples Federico 2, CNR INFM CRS COHERENTIA, I-80126 Naples, Italy; [Ambrosio, A.; Maddalena, P.] Univ Naples Federico 2, Dipartimento Sci Fis, I-80126 Naples, Italy; [Camposeo, A.] Natl Nanotechnol Lab CNR INFM, Distretto Technol ISUFI, I-73100 Lecce, Italy; [Patane, S.] Univ Messina, Dipartimento Fis Mat & Technol Fis Avanzate, I-98166 Messina, Italy; [Allegrini, M.] Univ Pisa, Dipartimento Fis E Fermi, I-56127 Pisa, Italy; [Allegrini, M.] Poly LAB CNR INFM Largo B, I-56127 Pisa, Italy (literal)
Titolo
  • Real-time monitoring of the surface relief formation on azo-polymer films upon near-field excitation (literal)
Abstract
  • We use near-field optical microscopy to investigate the early state formation of photo-induced topographical structures on the free surface of azobenzene-containing polymers. The near-field technique is employed to monitor in real time the mass migration during the embossing of the surface of 50/50 copolymer films of polymethacrylate and polymethacrylate containing 3-methyl-4'-pentyloxy-azobenzene units. The dynamic of surface relief formation induced by light have been investigated as a function of the sample temperature. Furthermore, a formula derived from Navier-Stokes equations for classical laminar flow has been used to fit the mass displacement data during the embossing process. Excellent agreements between the experimental data and the fitting formula have been found for all the temperature considered. (literal)
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