Impact of liquid environment on femtosecond laser ablation

The ablation rate by femtosecond laser processing of iron in different liquids is investigated for fluences up to 5 J/cm 2 . The resulting fluence dependency is modeled by an approach derived from the two-temperature model. In our experiments, the liquid environment strongly affects the effective pe...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2017-11, Vol.123 (11), p.1-7, Article 674
Main Authors: Kanitz, A., Hoppius, J. S., Fiebrandt, M., Awakowicz, P., Esen, C., Ostendorf, A., Gurevich, E. L.
Format: Article
Language:English
Subjects:
Applied physics
Characterization and Evaluation of Materials
Condensed Matter Physics
Environmental impact
Laser ablation
Laser processing
Machines
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Penetration depth
Physics
Physics and Astronomy
Processes
Surfaces and Interfaces
Thin Films
Toluene
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Summary:The ablation rate by femtosecond laser processing of iron in different liquids is investigated for fluences up to 5 J/cm 2 . The resulting fluence dependency is modeled by an approach derived from the two-temperature model. In our experiments, the liquid environment strongly affects the effective penetration depth, e.g, the ablation rate in water is almost ten times higher than in toluene. This effect is discussed and introduced phenomenologically into the model. Additional reflectivity measurements and plasma imaging provide improved insight into the ablation process.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-017-1280-z