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Št. zadetkov: 4
Femtosecond laser-induced optical breakdown and cavitation dynamics in water imaged with an x-ray free-electron laser
Hannes Paul Hoeppe, Juan Manuel Rosselló
Izvirni znanstveni članek
Oznake: laser-induced cavitation;self-focusing & filamentation in plasmas;free-electron lasers;water;ultrafast femtosecond pump probe;X-ray imaging;
We investigate the ultrafast dynamics of plasma formation by optical breakdown, filamentation, and cavitation in water, using high spatiotemporal resolution offered by x-ray free-electron laser (XFEL) radiation. A femtosecond infrared laser pulse is focused in a water-filled cuvette and probed by a ...
Leto: 2025 Vir: Fakulteta za strojništvo (UL FS)
Jetting bubbles observed by x-ray holography at a free-electron laser
Juan Manuel Rosselló, Hannes Paul Hoeppe, Max Koch, Christiane Lechner, Markus Osterhoff, Malte Vassholz, Johannes Hagemann, Johannes Möller, Markus Scholz, Ulrike Boesenberg
Izvirni znanstveni članek
Oznake: rentgenska holografija;brizganje mehurčkov;simulacije OpenFOAM;x-ray holography;bubble jetting;OpenFOAM simulations;
In this work, we study the jetting dynamics of individual cavitation bubbles using x-ray holographic imaging and high-speed optical shadowgraphy. The bubbles are induced by a focused infrared laser pulse in water near the surface of a flat, circular glass plate, and later probed with ultrashort x-ra ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
ǂThe ǂcollapse of a sonoluminescent cavitation bubble imaged with X-ray free-electron laser pulses
Hannes Paul Hoeppe, Markus Osterhoff, Atiyeh Aghel Maleki, Juan Manuel Rosselló, Malte Vassholz, Johannes Hagemann, Thea Engler, Daniel Schwarz, Angel Rodriguez-Fernandez, Ulrike Boesenberg
Izvirni znanstveni članek
Oznake: sonoluminiscenca;x-žarki;mehurčki;sonoluminescence;x-rays;bubbles;
The collapse of a sonoluminescent cavitation bubble imaged with X-ray free-electron laser pulses
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Structural dynamics of water in a supersonic shockwave
Malte Vassholz, Hannes Paul Hoeppe, Johannes Hagemann, Juan Manuel Rosselló, Markus Osterhoff, Robert Mettin, Johannes Möller, Markus Scholz, Ulrike Boesenberg, Jörg Hallmann, Chan Kim, Alexey Zozulya, Wei Lu, Roman Shayduk, Anders Madsen, Tim Salditt
Izvirni znanstveni članek
Oznake: x-ray holography;shock waves;cavitation;
We explore the pressure evolution and structural dynamics of transient phase transitions in a microfluidic water jet after laser-induced dielectric breakdown. To this end, we use a combined approach of near-field holography with single femtosecond x-ray free-electron laser pulses and x-ray diffracti ...
Leto: 2023 Vir: Fakulteta za strojništvo (UL FS)
Št. zadetkov: 4
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