| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9567141 | Applied Surface Science | 2005 | 6 Pages |
Abstract
Femto- and nanosecond laser ablation of polymethylmethacrylate (PMMA) and PMMA doped with a linear absorber was investigated in the infrared spectral region. Ablation thresholds were determined and incubation phenomena were identified. The 'degree' of incubation was calculated employing a phenomenological model. The influence of the pulse duration on the machining quality of the polymers was examined. The presence of an absorbing chromophore is not a prerequisite for a controllable fs-laser structuring in contrast to the ns-treatment. Surface swelling always accompanied ablation.
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Authors
J. Krüger, S. Martin, H. Mädebach, L. Urech, T. Lippert, A. Wokaun, W. Kautek,