Damage caused by a nanosecond UV laser on a heated copper surface (CROSBI ID 233117)
Prilog u časopisu | izvorni znanstveni rad
Podaci o odgovornosti
Henč-Bartolić, Višnja ; Bončina, Tonica ; Jakovljević, Suzana ; Panjan, Petar ; Zupanič, Franc
engleski
Damage caused by a nanosecond UV laser on a heated copper surface
This work studied the effect of thin copper plate temperature on its surface morphology after irradiation using a pulsed nanosecond UV laser. The surface characteristics were investigated using scanning electron microscopy, energy dispersive X-ray spectroscopy, focused ion beam and stylus profilometry. When a target was at room temperature, a crater and the radial flow of molten Cu from the crater was observed. When the thin target was warm (about 360 °C ± 20 °C), a crater was smaller, and quasi- semicircular waves with the periodicity of around 3 μm appeared in its vicinity. The origin of the waves is Marangoni effect, causing thermocapillary waves, which in same occasions had a structure of final states of chaos in Rayleigh–Bénard convection.
nanosecond laser ; capillary waves ; copper ; surface topography
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Podaci o izdanju
378
2016.
357-361
objavljeno
0169-4332
1873-5584
10.1016/j.apsusc.2016.03.112