Ultrashort pulse laser ablation of polycarbonate and polymethylmethacrylate
| Autor: | Wolfgang Kautek, S. Baudach, J. Krüger, Jörn Bonse |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
business.industry medicine.medical_treatment General Physics and Astronomy Pulse duration Surfaces and Interfaces General Chemistry Condensed Matter Physics Ablation Laser Fluence Surfaces Coatings and Films law.invention X-ray laser Optics law Ultrafast laser spectroscopy medicine business Ultrashort pulse Ultrashort pulse laser |
| Zdroj: | Applied Surface Science. :555-560 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/s0169-4332(99)00474-2 |
| Popis: | Ablation experiments with ultrashort laser pulses (pulse duration 150 fs, wavelength 800 nm) on polymers (PC, PMMA) relevant for biomedical technology have been performed in air. The lateral and vertical machining precision was evaluated by optical, atomic force and scanning electron microscopy. The ablation threshold reaches values in the range of 0.5–2.5 J/cm 2 and depends significantly on the number of laser pulses applied to the same spot. The hole diameters are influenced by the laser fluence and the number of laser pulses. The relation between the ablation threshold and the number of laser pulses applied to the same spot is described in accordance with an incubation model. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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