Ultrafast dynamics of electrons and phonons: from the two-temperature model to the time-dependent Boltzmann equation
The advent of pump-probe spectroscopy techniques paved the way to the exploration of
ultrafast dynamics of electrons and phonons in crystalline solids. Following photo-absorption …
ultrafast dynamics of electrons and phonons in crystalline solids. Following photo-absorption …
Progress in the study of electron–ion coupling in nonequilibrium Warm Dense Au and Cu
A Ng - Physics Reports, 2024 - Elsevier
Electron–ion coupling is a fundamental process in nonequilibrium Warm Dense Matter. It
also plays a central role in governing the states resulting from the interaction of high …
also plays a central role in governing the states resulting from the interaction of high …
Electronic and structural fingerprints of charge-density-wave excitations in extreme ultraviolet transient absorption spectroscopy
Femtosecond core-level transient absorption spectroscopy is utilized to investigate
photoinduced dynamics of the charge density wave in 1 T-TiSe 2 at the Ti M 2, 3 edge (32 …
photoinduced dynamics of the charge density wave in 1 T-TiSe 2 at the Ti M 2, 3 edge (32 …
Spin dynamics across metallic layers on the few-femtosecond timescale
We measure the light-driven response of a magnetic multilayer structure made of thin
alternating layers of cobalt and platinum at the few-femtosecond timescale. Using …
alternating layers of cobalt and platinum at the few-femtosecond timescale. Using …
Optically controlling the competition between spin flips and intersite spin transfer in a Heusler half-metal on sub–100-fs time scales
The direct manipulation of spins via light may provide a path toward ultrafast energy-efficient
devices. However, distinguishing the microscopic processes that can occur during ultrafast …
devices. However, distinguishing the microscopic processes that can occur during ultrafast …
Ultrafast Transition from State-Blocking Dynamics to Electron Localization in Transition Metal -Tungsten
EW de Vos, S Neb, A Niedermayr, F Burri, M Hollm… - Physical Review Letters, 2023 - APS
We describe an ultrafast transition of the electronic response of optically excited transition
metal β-tungsten with few-femtosecond time resolution. The response moves from a regime …
metal β-tungsten with few-femtosecond time resolution. The response moves from a regime …
Computational study of elastic waves generated by ultrafast demagnetization in fcc Ni
Picosecond ultrasonics is a fast growing and advanced research field with broad application
to the imaging and characterization of nanostructured materials as well as at a fundamental …
to the imaging and characterization of nanostructured materials as well as at a fundamental …
Element-specific electronic and structural dynamics using transient XUV and soft X-ray spectroscopy
Transient extreme ultraviolet (XUV) and soft X-ray absorption techniques can measure
element-specific ultrafast carrier and structural dynamics in materials or multilayer junctions …
element-specific ultrafast carrier and structural dynamics in materials or multilayer junctions …
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 …
How light drives material periodic patterns down to the nanoscale
A Rudenko, JP Colombier - Ultrafast Laser Nanostructuring: The Pursuit of …, 2023 - Springer
Ultrashort laser pulses enable efficient energy confinement down to the nanoscale, inducing
extreme thermodynamic conditions in condensed matter. In contrast to longer pulse …
extreme thermodynamic conditions in condensed matter. In contrast to longer pulse …