Wavelength Dependence of Picosecond Laser-Induced Periodic Surface Structures on Copper
arXiv:1702.03655 · doi:10.1016/j.apsusc.2017.02.068
Abstract
The physical mechanisms of the laser-induced periodic surface structures (LIPSS) formation are studied in this paper for single-pulse irradiation regimes. The change in the LIPSS period with wavelength of incident laser radiation is investigated experimentally, using a picosecond laser system, which provides 7-ps pulses in near-IR, visible, and UV spectral ranges. The experimental results are compared with predictions made under the assumption that the surface-scattered waves are involved in the LIPSS formation. Considerable disagreement suggests that hydrodynamic mechanisms can be responsible for the observed pattern periodicity.
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Cited by in corpus (4)
- Tailoring surface topographies on solids with Mid-IR femtosecond laser pulses
- Orientation of ripples induced by ultrafast laser pulses on copper in different liquids
- Interplay of viscosity and surface tension for ripple formation by laser melting
- Functional surface formation by efficient laser ablation using single-pulse and burst-modes