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Deposition of Ablation Products from UV-Laser Irradiated Polymer Surfaces

Published online by Cambridge University Press:  15 February 2011

E. Arenholz
Affiliation:
Angewandte Physik, J. -Kepler-Universität, A-4040 Linz, Austria
A. Kirchebner
Affiliation:
Angewandte Physik, J. -Kepler-Universität, A-4040 Linz, Austria
S. Klose
Affiliation:
Angewandte Physik, J. -Kepler-Universität, A-4040 Linz, Austria
J. Heitz
Affiliation:
Angewandte Physik, J. -Kepler-Universität, A-4040 Linz, Austria
D. Bäuerle
Affiliation:
Angewandte Physik, J. -Kepler-Universität, A-4040 Linz, Austria
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Abstract

The growth and structure of surface dendrites observed after UV-Iaser irradiation of polyethylene-terephthalate (PET) have been investigated. The lateral size and structure of dendrites is strongly influenced by the laser wavelength and ambient pressure. Pressure-dependent experiments demonstrate the importance of redeposition of ablation products onto the laser-modified surface. Different possible growth mechanisms are discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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