High-frequency periodic patterns driven by non-radiative fields coupled with Marangoni convection instabilities on laser-excited metal surfaces
The capability to organize matter in spontaneous periodic patterns under the action of light is
critical in achieving laser structuring on sub-wavelength scales. Here, the phenomenon of …
critical in achieving laser structuring on sub-wavelength scales. Here, the phenomenon of …
[HTML][HTML] Controlling 2D laser nano structuring over large area with double femtosecond pulses
F Fraggelakis, G Mincuzzi, J Lopez… - Applied Surface …, 2019 - Elsevier
Laser surface texturing is an established way to introduce surface functionalities on solid
surfaces. By means of femtosecond laser sources, it's possible to texture a variety of solids …
surfaces. By means of femtosecond laser sources, it's possible to texture a variety of solids …
Ultrashort single-pulse laser ablation of stainless steel, aluminium, copper and its dependence on the pulse duration
J Winter, M Spellauge, J Hermann, C Eulenkamp… - Optics express, 2021 - opg.optica.org
In this work, we investigate single-pulse laser ablation of bulk stainless steel (AISI304),
aluminium (Al) and copper (Cu) and its dependence on the pulse duration. We measured …
aluminium (Al) and copper (Cu) and its dependence on the pulse duration. We measured …
[HTML][HTML] Ultrafast pump-probe ellipsometry and microscopy reveal the surface dynamics of femtosecond laser ablation of aluminium and stainless steel
J Winter, S Rapp, M Spellauge, C Eulenkamp… - Applied Surface …, 2020 - Elsevier
An ultra-short laser pulse irradiated surface passes through a sequence of physical
processes that occur over a wide temporal range, from femtoseconds to microseconds. In …
processes that occur over a wide temporal range, from femtoseconds to microseconds. In …
Amplification and regulation of periodic nanostructures in multipulse ultrashort laser-induced surface evolution by electromagnetic-hydrodynamic simulations
The formation of periodic structures in ultrafast laser-irradiated surfaces implies dynamic
coupling between the incoming light and the light-driven material. To capture the mutual …
coupling between the incoming light and the light-driven material. To capture the mutual …
Influence of stress confinement, particle shielding and re-deposition on the ultrashort pulse laser ablation of metals revealed by ultrafast time-resolved experiments
The ablation rate in double-pulse material processing is strongly influenced by the pulse
separation. For pulse separations exceeding 3 ps a significant decrease in ablation volume …
separation. For pulse separations exceeding 3 ps a significant decrease in ablation volume …
Martensitic transformation in temporally shaped femtosecond laser shock peening 304 steel
Y Lian, Y Hua, J Sun, Q Wang, Z Chen, F Wang… - Applied Surface …, 2021 - Elsevier
Laser shock peening (LSP) plays an important role in simultaneously strengthening and
toughening materials for many engineering applications, such as key structures of aircraft …
toughening materials for many engineering applications, such as key structures of aircraft …
Incubation during laser ablation with bursts of femtosecond pulses with picosecond delays
C Gaudiuso, G Giannuzzi, A Volpe, PM Lugarà… - Optics express, 2018 - opg.optica.org
We report on an experimental investigation of the incubation effect during irradiation of
stainless steel with bursts of ultrashort laser pulses. A series of birefringent crystals was …
stainless steel with bursts of ultrashort laser pulses. A series of birefringent crystals was …
Single-pulse laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass for pulse widths of 500 fs, 10 ps, 20 ns
In this work, we report a comparative study of the laser ablation threshold of borosilicate,
fused silica, sapphire, and soda-lime glass as a function of the pulse width and for IR laser …
fused silica, sapphire, and soda-lime glass as a function of the pulse width and for IR laser …
Super-efficient drilling of metals with ultrafast non diffractive laser beams
A highly efficient drilling process is found in non-transparent metallic materials enabled by
the use of non-diffractive ultrafast Bessel beams. Applied for deep drilling through a 200 μm …
the use of non-diffractive ultrafast Bessel beams. Applied for deep drilling through a 200 μm …