English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/89320
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Assessment of femtosecond laser induced periodic surface structures on polymer films

AuthorsRebollar, Esther ; Vázquez de Aldana, Javier R.; Martín-Fabiani, Ignacio ; Hernández, Margarita ; Rueda, Daniel R. ; Ezquerra, Tiberio A. ; Domingo, Concepción ; Moreno, Pablo ; Castillejo, Marta
Issue Date2013
PublisherRoyal Society of Chemistry (UK)
CitationPhysical Chemistry Chemical Physics 15: 11287- 11298 (2013)
AbstractIn this work we present the formation of laser induced periodic surface structures (LIPSS) on spin-coated thin films of several model aromatic polymers including poly(ethylene terephthalate), poly(trimethylene terephthalate) and poly carbonate bis-phenol A upon irradiation with femtosecond pulses of 795 and 265 nm at fluences well below the ablation threshold. LIPSS are formed with period lengths similar to the laser wavelength and parallel to the direction of the laser polarization vector. Formation of LIPSS upon IR irradiation at 795 nm, a wavelength at which the polymers absorb weakly, contrasts with the absence of LIPSS in this spectral range upon irradiation with nanosecond pulses. Real and reciprocal space characterization of LIPSS obtained by Atomic Force Microscopy (AFM) and Grazing Incidence Small Angle X-ray Scattering (GISAXS), respectively, yields well correlated morphological information. Comparison of experimental and simulated GISAXS patterns suggests that LIPSS can be suitably described considering a quasi-one-dimensional paracrystalline lattice and that irradiation parameters have an influence on the order of such a lattice. Fluorescence measurements, after laser irradiation, provide indirect information about dynamics and structure of the polymer at the molecular level. Our results indicate that the LIPSS are formed by interference of the incident and surface scattered waves. As a result of this process, heating of the polymer surface above its glass transition temperature takes place enabling LIPSS formation. © 2013 the Owner Societies.
Identifiersdoi: 10.1039/c3cp51523k
issn: 1463-9076
Appears in Collections:(CFMAC-IEM) Artículos
Files in This Item:
File Description SizeFormat 
Rebollar.pdf3,94 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.