[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 …
[HTML][HTML] Exploring femtosecond laser ablation by snapshot ultrafast imaging and molecular dynamics simulation
Femtosecond laser ablation (FLA) has been playing a prominent role in precision fabrication
of material because of its circumvention of thermal effect and extremely high spatial …
of material because of its circumvention of thermal effect and extremely high spatial …
Resolving transient temperature and density during ultrafast laser ablation of aluminum
To understand the dynamics of ultrashort-pulse laser ablation, the interpretation of ultrafast
time-resolved optical experiments is of utmost importance. To this end, spatiotemporally …
time-resolved optical experiments is of utmost importance. To this end, spatiotemporally …
Drude-lorentz model for optical properties of photoexcited transition metals under electron-phonon nonequilibrium
E Silaeva, L Saddier, JP Colombier - Applied Sciences, 2021 - mdpi.com
Evaluating the optical properties of matter under the action of ultrafast light is crucial in
modeling laser–surface interaction and interpreting laser processing experiments. We report …
modeling laser–surface interaction and interpreting laser processing experiments. We report …
[HTML][HTML] Broadband femtosecond spectroscopic ellipsometry
S Richter, M Rebarz, O Herrfurth, S Espinoza… - Review of Scientific …, 2021 - pubs.aip.org
We present a setup for time-resolved spectroscopic ellipsometry in a pump–probe scheme
using femtosecond laser pulses. As a probe, the system deploys supercontinuum white light …
using femtosecond laser pulses. As a probe, the system deploys supercontinuum white light …
Ultrafast dynamics of hot charge carriers in an oxide semiconductor probed by femtosecond spectroscopic ellipsometry
S Richter, O Herrfurth, S Espinoza… - New Journal of …, 2020 - iopscience.iop.org
Many linked processes occur concurrently in strongly excited semiconductors, such as
interband and intraband absorption, scattering of electrons and holes by the heated lattice …
interband and intraband absorption, scattering of electrons and holes by the heated lattice …
Laser‐Induced Positional and Chemical Lattice Reordering Generating Ferromagnetism
Atomic scale reordering of lattices can induce local modulations of functional material
properties, such as reflectance and ferromagnetism. Pulsed femtosecond laser irradiation …
properties, such as reflectance and ferromagnetism. Pulsed femtosecond laser irradiation …
Ultrafast spallation dynamics of a thin gold film characterized by imaging pump-probe interferometry
Interferometry allows to measure microscopic displacements in the nanometer scale. This
work introduces an imaging pump-probe interferometer that enables to detect the spatially …
work introduces an imaging pump-probe interferometer that enables to detect the spatially …
Hydrodynamic modeling and time-resolved imaging reflectometry of the ultrafast laser-induced ablation of a thin gold film
The ablation of thin metal films using ultrafast laser radiation represents a standard
processing procedure in laser technology. However, looking closer to the resulting …
processing procedure in laser technology. However, looking closer to the resulting …
Fluence-dependent transient reflectance of stainless steel investigated by ultrafast imaging pump–probe reflectometry
The ablation efficiency during laser processing strongly depends on the initial and transient
reflectance of the irradiated material surface. This article reports on the transient relative …
reflectance of the irradiated material surface. This article reports on the transient relative …