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Laser Interference Patterning (laser + interference_patterning)

Distribution by Scientific Domains
Polymers and Materials Science100%

Selected Abstracts

Fabrication of Periodic Microstructures in Pentaerythritol Triacrylate Through Femtosecond Laser Interference Two-Photon Polymerization,

ADVANCED ENGINEERING MATERIALS, Issue 7 2009
Andrés Lasagni
Fabrication of periodic, two-dimensional microstructures in pentaerythritol triacrylate (PETIA) is demonstrated through femtosecond laser interference patterning. Planar arrayed structures of different periodicities and geometries were fabricated using three, four, and five interfering beams from an 800,nm ultrafast femtosecond laser. The periodic topography can be varied from isolated conical pillars to interconnected cellular structures by simple control of the interference pattern in combination with energy dose. [source]

Inside Front Cover ,Advanced Biomaterials 1/2009

ADVANCED ENGINEERING MATERIALS, Issue 3 2009
Andrés F. Lasagni
The cover picture by Lasagni et. al shows two-dimensional periodic microstructures of polyethylene glycol diacrylate (PEG-DA) fabricated using nanosecond (top) and femtosecond (bellow) multibeam laser interference patterning (MLI). The periodic topography can be varied by simple control of the interference patterns as well as exposure dosages. Such structures with controlled topography are of relevant importance for applications in biomedical devices. [source]

Periodic Micropatterning of Polyethylene Glycol Diacrylate Hydrogel by Laser Interference Lithography Using Nano- and Femtosecond Pulsed Lasers,

ADVANCED ENGINEERING MATERIALS, Issue 3 2009
Andrés F. Lasagni
In this article, we report on the fabrication of periodic arrays using multibeam laser interference patterning (MLI) with both nanosecond and femtosecond lasers on hydrogel materials. Configurations involving two, four, and five laser beams were utilized being able to produce a wide range of periodic arrays. [source]

Simple Fabrication Method of Conductive Polymeric Arrays by Using Direct Laser Interference Micro-/Nanopatterning,

ADVANCED MATERIALS, Issue 9 2007
A. Acevedo
Thin films of polyaniline (PANI) deposited onto different polymeric substrates are nanostructured by using "direct laser interference patterning" at room temperature and pressure in air atmosphere. Regular linelike arrays (see figure) with thicknesses up to 600,nm are fabricated and their activity is determined using different techniques. The structuring mechanisms of PANI supported in both polycarbonate and polyimide films are demonstrated using cross-sectional analyses performed with a dual-beam workstation. [source]