134 citations · 357 across the 15 of their papers we have counts for
16 papers
Megabar Shocks on a Benchtop
Yun Kai, Min Kim, Senpeng Lin +9
Techniques to generate megabar (100 GPa) pressure are critical for the study of materials under extreme conditions. However, kJ-class lasers are typically needed to generate such e…
High-power laser beam shaping using a metasurface for shock excitation and focusing at the microscale
Yun Kai, Jet Lem, Marcus Ossiander +6
Achieving high repeatability and efficiency in laser-induced strong shock wave excitation remains a significant technical challenge, as evidenced by the extensive efforts undertake…
Additive Laser Excitation of Giant Nonlinear Surface Acoustic Wave Pulses
Jude Deschamps, Yun Kai, Jet Lem +6
The laser ultrasonics technique perfectly fits the needs for non-contact, non-invasive, non-destructive mechanical probing of samples of mm to nm sizes. This technique is however l…
Nonlinear optical absorption in nanoscale films revealed through ultrafast acoustics
Ievgeniia Chaban, Radoslaw Deska, Gael Privault +7
Herein we describe a novel spinning pump-probe photoacoustic technique developed to study nonlinear absorption in thin films. As a test case, an organic polycrystalline thin film o…
Direct Observation of Coherent Longitudinal and Shear Acoustic Phonons in TaAs Using Ultrafast X-ray Diffraction
Min-Cheol Lee, N. Sirica, S. W. Teitelbaum +18
Using femtosecond time-resolved X-ray diffraction, we investigated optically excited coherent acoustic phonons in the Weyl semimetal TaAs. The low symmetry of the (112) surface pro…
Tracking picosecond strain pulses in heterostructures that exhibit giant magnetostriction
S. P. Zeuschner T. Parpiiev, T. Pezeril, A. Hillion +8
We combine ultrafast X-ray diffraction (UXRD) and time-resolved Magneto-Optical Kerr Effect (MOKE) measurements to monitor the strain pulses in laser-excited TbFe2/Nb heterostructu…
Ultrafast tunable modulation of light polarization at terahertz frequencies
Vincent Juvé, Gwenaëlle Vaudel, Zoltan Ollmann +4
Controlling light polarization is one of the most essential routines in modern optical technology. Since the demonstration of optical pulse shaping by spatial light modulators and…
Single-bubble and multi-bubble cavitation in water triggered by laser-driven focusing shock waves
D. Veysset, U. Gutiérrez-Hernández, L. Dresselhaus-Cooper +5
In this study a single laser pulse spatially shaped into a ring is focused into a thin water layer, creating an annular cavitation bubble and cylindrical shock waves: an outer shoc…
Time-domain Brillouin scattering assisted by diffraction gratings
Osamu Matsuda, Thomas Pezeril, Ievgeniia Chaban +2
Absorption of ultrashort laser pulses in a metallic grating deposited on a transparent sample launches coherent compression/dilatation acoustic pulses in directions of different or…
Time-domain Brillouin scattering for the determination of laser-induced temperature gradients in liquids
I. Chaban, D. Shin, C. Klieber +4
We present an optical technique based on ultrafast photoacoustics to precisely determine the local temperature distribution profile in liquid samples in contact with a laser heated…
Ultrafast non-thermal laser excitation of gigahertz longitudinal and shear acoustic waves in spin-crossover molecular crystals []
T. Parpiiev, M. Servol, M. Lorenc +6
We report GHz longitudinal as well as shear acoustic phonons photoexcitation and photodetection using femtosecond laser pulses in a spin-crossover molecular crystal. From our exper…
Nonlinear acousto-magneto-plasmonics
Vasily V. Temnov, Ilya Razdolski, Thomas Pezeril +4
We review the recent progress in experimental and theoretical research of interactions between the acoustic, magnetic and plasmonic transients in hybrid metal-ferromagnet multilaye…
Ultrafast electron-phonon-magnon interactions at noble metal-ferromagnet interfaces
V. Shalagatskyi, O. Kovalenko, V. Shumylo +8
Ultrafast optical excitation of gold-cobalt bilayers triggers the nontrivial interplay between the electronic, acoustic, and magnetic degrees of freedom. Laser-heated electrons gen…
Nonlinear Acoustics at GHz Frequencies in a Viscoelastic Fragile Glass Former
Christoph Klieber, Vitalyi E. Gusev, Thomas Pezeril +1
Using a picosecond pump-probe ultrasonic technique, we study the propagation of high-amplitude, laser-generated longitudinal coherent acoustic pulses in the viscoelastic fragile gl…
Magnetization switching by ultrashort acoustic pulses
O. Kovalenko, T. Pezeril, V. V. Temnov
It is shown theoretically that a single a few picoseconds long acoustic pulse can reverse magnetization in a magneto-strictive material Terfenol-D. Following giant magneto-elastic…
Direct Visualization of Laser-Driven Focusing Shock Waves
Thomas Pezeril, Gagan Saini, David Veysset +4
Cylindrically or spherically focusing shock waves have been of keen interest for the past several decades. In addition to fundamental study of materials under extreme conditions, c…