Journal
OPTICS LETTERS
Volume 40, Issue 24, Pages 5734-5737Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.40.005734
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- Europaische Fonds fur regionale Entwicklung (EFRE) [(FK 13010-715 NANOSOR)]
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The influence of different polarization states during the generation of periodic nanostructures on the surface of carbon fibers was investigated using a femtosecond laser with a pulse duration tau = 300 fs, a wavelength lambda = 1025 nm, and a peak fluence F = 4 J/cm(2). It was shown that linear polarization results in a well-aligned periodic pattern with different orders of magnitude concerning their period and an alignment parallel and perpendicular to fiber direction, respectively. For circular polarization, both types of uniform laser-induced periodic surface structures (LIPSS) patterns appear simultaneously with different dominance in dependence on the position at the fiber surface. Their orientation was explained by the polarization-dependent absorptivity and the geometrical anisotropy of the carbon fibers. (C) 2015 Optical Society of America
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