Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Schramm,Ulrich"'
Autor:
Yang, Long, Rehwald, Martin, Kluge, Thomas, Laso, Alejandro, Toncian, Toma, Zeil, Karl, Schramm, Ulrich, Cowan, Thomas E, Huang, Lingen
We investigate the dynamics of convergent shock compression in the solid wire targets irradiated by an ultra-fast relativistic laser pulse. Our Particle-in-Cell (PIC) simulations and coupled hydrodynamic simulations reveal that the compression proces
Externí odkaz:
http://arxiv.org/abs/2309.10626
Autor:
Steiniger, Klaus, Widera, Rene, Bastrakov, Sergei, Bussmann, Michael, Chandrasekaran, Sunita, Hernandez, Benjamin, Holsapple, Kristina, Huebl, Axel, Juckeland, Guido, Kelling, Jeffrey, Leinhauser, Matt, Pausch, Richard, Rogers, David, Schramm, Ulrich, Young, Jeff, Debus, Alexander
Publikováno v:
Computer Physics Communications 291 (2023) 108849
We present EZ, a novel current deposition algorithm for particle-in-cell (PIC) simulations. EZ calculates the current density on the electromagnetic grid due to macro-particle motion within a time step by solving the continuity equation of electrodyn
Externí odkaz:
http://arxiv.org/abs/2309.09873
Autor:
Yang, Long, Huang, Lingen, Assenbaum, Stefan, Cowan, Thomas E, Goethel, Ilja, Göde, Sebastian, Kluge, Thomas, Rehwald, Martin, Pan, Xiayun, Schramm, Ulrich, Vorberger, Jan, Zeil, Karl, Ziegler, Tim, Bernert, Constantin
Particle-in-cell (PIC) simulations are a superior tool to model kinetics-dominated plasmas in relativistic and ultrarelativistic laser-solid interactions (dimensionless vectorpotential $a_0 > 1$). The transition from relativistic to subrelativistic l
Externí odkaz:
http://arxiv.org/abs/2306.00506
Autor:
Ordyna, Paweł, Bähtz, Carsten, Brambrink, Erik, Bussmann, Michael, Garcia, Alejandro Laso, Garten, Marco, Gaus, Lennart, Grenzer, Jörg, Gutt, Christian, Höppner, Hauke, Huang, Lingen, Humphries, Oliver, Marré, Brian Edward, Metzkes-Ng, Josefine, Nakatsutsumi, Motoaki, Öztürk, Özgül, Pan, Xiayun, Paschke-Brühl, Franziska, Pelka, Alexander, Prencipe, Irene, Randolph, Lisa, Schlenvoigt, Hans-Peter, Šmíd, Michal, Stefanikova, Radka, Thiessenhusen, Erik, Toncian, Toma, Zeil, Karl, Schramm, Ulrich, Cowan, Thomas E., Kluge, Thomas
Ultra-intense lasers that ionize and accelerate electrons in solids to near the speed of light can lead to kinetic instabilities that alter the laser absorption and subsequent electron transport, isochoric heating, and ion acceleration. These instabi
Externí odkaz:
http://arxiv.org/abs/2304.11011
Autor:
Willmann, Anna, Cabadağ, Jurjen Couperus, Chang, Yen-Yu, Pausch, Richard, Ghaith, Amin, Debus, Alexander, Irman, Arie, Bussmann, Michael, Schramm, Ulrich, Hoffmann, Nico
Publikováno v:
Machine Learning and the Physical Sciences 2022 workshop, NeurIPS
Understanding and control of Laser-driven Free Electron Lasers remain to be difficult problems that require highly intensive experimental and theoretical research. The gap between simulated and experimentally collected data might complicate studies a
Externí odkaz:
http://arxiv.org/abs/2303.00657
Autor:
Kluge, Thomas, Bussmann, Michael, Galtier, Eric, Glenzer, Siegfried, Grenzer, Jörg, Gutt, Christian, Hartley, Nicholas J., Huang, Lingen, Garcia, Alejandro Laso, Lee, Hae Ja, McBride, Emma E., Metzkes-Ng, Josefine, Nakatsutsumi, Motoaki, Nam, Inhyuk, Pelka, Alexander, Prencipe, Irene, Randolph, Lisa, Rehwald, Martin, Rödel, Christian, Rödel, Melanie, Toncian, Toma, Yang, Long, Zeil, Karl, Schramm, Ulrich, Cowan, Thomas E.
In this paper, we present an experiment that explores the plasma dynamics of a 7 micron diameter carbon wire after being irradiated with a near-relativistic-intensity short pulse laser. Using an X-ray Free Electron Laser pulse to measure the small an
Externí odkaz:
http://arxiv.org/abs/2302.03104
Autor:
Paschke-Bruehl, Franziska-Luise, Banjafar, Mohammad, Garten, Marco, Huang, Lingen, Marré, Brian Edward, Nakatsutsumi, Motoaki, Randolph, Lisa, Cowan, Thomas E., Schramm, Ulrich, Kluge, Thomas
We present a computational study of isochoric heating in multi-layered targets at ultra-high intensity laser irradiation (approx. 10**20 W/cm**2). Previous studies have shown enhanced ion heating at interfaces, but at the cost of large temperature gr
Externí odkaz:
http://arxiv.org/abs/2211.16868
Autor:
Göthel, Ilja, Bernert, Constantin, Bussmann, Michael, Garten, Marco, Miethlinger, Thomas, Rehwald, Martin, Zeil, Karl, Ziegler, Tim, Cowan, Thomas E., Schramm, Ulrich, Kluge, Thomas
In the effort of achieving high-energetic ion beams from the interaction of ultrashort laser pulses with a plasma, volumetric acceleration mechanisms beyond Target Normal Sheath Acceleration have gained attention. A relativisticly intense laser can t
Externí odkaz:
http://arxiv.org/abs/2110.01257
Autor:
Zarini, Omid, Cabadağ, Jurjen Couperus, Chang, Yen-Yu, Köhler, Alexander, Kurz, Thomas, Schöbel, Susanne, Seidel, Wolfgang, Bussmann, Michael, Schramm, Ulrich, Debus, Alexander
We present design and realization of an ultra-broadband optical spectrometer capable of measuring the spectral intensity of multi-octave-spanning light sources on a single-pulse basis with a dynamic range of up to 8 orders of magnitude. The instrumen
Externí odkaz:
http://arxiv.org/abs/2104.08539
We present a novel intuitive graphical method for the simulation of non-linear effects on stretched pulses characterized by a large time-bandwidth product. By way of example, it allows precise determination of effects occurring in CPA (chirped pulse
Externí odkaz:
http://arxiv.org/abs/2103.06005