J. Limpouch
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View article: Investigation of ion temperature in low-density undercritical foams
Investigation of ion temperature in low-density undercritical foams Open
The ion temperature in laser-heated foam materials can be considerably higher than the electron temperature due to the internal collisions of the plasma flows originating from the heterogeneous foam microstructure. Recently, we have develo…
View article: Laser interaction with undercritical foams of different spatial structures
Laser interaction with undercritical foams of different spatial structures Open
The interaction of high-power laser pulses with undercritical foams produced by different techniques but with the same average density is studied at the PALS laser facility. The spatial–temporal evolution of X-ray emission is observed usin…
View article: Multiscale modeling of HHG and its applications
Multiscale modeling of HHG and its applications Open
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic
View article: Hybrid ablation–expansion model for laser interaction with low-density foams
Hybrid ablation–expansion model for laser interaction with low-density foams Open
A sub-grid foam model is developed to describe numerically a sequence of processes transforming solid elements in the foam into a hot plasma under the energy deposition by lasers. We account for three distinct processes: accurate laser ene…
View article: Studies of laser-plasma interaction physics with low-density targets for direct-drive inertial confinement fusion on the Shenguang III prototype
Studies of laser-plasma interaction physics with low-density targets for direct-drive inertial confinement fusion on the Shenguang III prototype Open
The physics of laser-plasma interaction is studied on the Shenguang III prototype laser facility under conditions relevant to inertial confinement fusion designs. A sub-millimeter-size underdense hot plasma is created by ionization of a lo…
View article: Innovative education and training in high power laser plasmas (PowerLaPs) for plasma physics, high power laser matter interactions and high energy density physics: experimental diagnostics and simulations – CORRIGENDUM
Innovative education and training in high power laser plasmas (PowerLaPs) for plasma physics, high power laser matter interactions and high energy density physics: experimental diagnostics and simulations – CORRIGENDUM Open
Innovative education and training in high power laser plasmas (PowerLaPs) for plasma physics, high power laser matter interactions and high energy density physics: experimental diagnostics and simulations – CORRIGENDUM - Volume 8
View article: Innovative education and training in high power laser plasmas (PowerLaPs) for plasma physics, high power laser matter interactions and high energy density physics: experimental diagnostics and simulations
Innovative education and training in high power laser plasmas (PowerLaPs) for plasma physics, high power laser matter interactions and high energy density physics: experimental diagnostics and simulations Open
The second and final year of the Erasmus Plus programme ‘Innovative Education and Training in high power laser plasmas’, otherwise known as PowerLaPs, is described. The PowerLaPs programme employs an innovative paradigm in that it is a mul…
View article: Soft X-ray spectral analysis of laser produced molybdenum plasmas using the fundamental and second harmonics of a Nd:YAG laser
Soft X-ray spectral analysis of laser produced molybdenum plasmas using the fundamental and second harmonics of a Nd:YAG laser Open
Our measurement of the soft X-ray emission of Mo plasmas produced by picosecond Nd:YAG lasers emitting on the fundamental (1064 nm, 150 ps) and second (532 nm, 130 ps) harmonics is presented. The contrast in intensity between spectral peak…
View article: Studies of laser-plasma interaction physics with low-density targets for direct-drive inertial confinement schemes
Studies of laser-plasma interaction physics with low-density targets for direct-drive inertial confinement schemes Open
Comprehensive understanding and possible control of parametric instabilities in the context of inertial confinement fusion (ICF) remains a challenging task. The details of the absorption processes and the detrimental effects of hot electro…
View article: Innovative Education and Training in high power laser plasmas (PowerLaPs) for plasma physics, high power laser–matter interactions and high energy density physics – theory and experiments
Innovative Education and Training in high power laser plasmas (PowerLaPs) for plasma physics, high power laser–matter interactions and high energy density physics – theory and experiments Open
The Erasmus Plus programme ‘Innovative Education and Training in high power laser plasmas’, otherwise known as PowerLaPs, is described. The PowerLaPs programme employs an innovative paradigm in that it is a multi-centre programme where tea…
View article: Laser interactions with low density porous matter - experiment and modelling
Laser interactions with low density porous matter - experiment and modelling Open
View article: Characterization of supersonic and subsonic gas targets for laser wakefield electron acceleration experiments
Characterization of supersonic and subsonic gas targets for laser wakefield electron acceleration experiments Open
The choice of the correct density profile is crucial in laser wakefield acceleration. In this work, both subsonic and supersonic gas targets are characterized by means of fluid-dynamic simulations and experimental interferometric measureme…
View article: Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience
Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience Open
View article: Macroscopic laser–plasma interaction under strong non-local transport conditions for coupled matter and radiation
Macroscopic laser–plasma interaction under strong non-local transport conditions for coupled matter and radiation Open
Reliable simulations of laser–target interaction on the macroscopic scale are burdened by the fact that the energy transport is very often non-local. This means that the mean-free-path of the transported species is larger than the local gr…
View article: Multi probes measurements at the PALS Facility Research Centre during high intense laser pulse interactions with various target materials
Multi probes measurements at the PALS Facility Research Centre during high intense laser pulse interactions with various target materials Open
During the interaction of high intense laser pulse with solid target, a large amount of hot electrons is produced and a giant Electromagnetic Pulse (EMP) is generated due to the current flowing into the system target–target holder, as well…
View article: Experimental and theoretical study on emission spectra of a nitrogen photoionized plasma induced by intense EUV pulses
Experimental and theoretical study on emission spectra of a nitrogen photoionized plasma induced by intense EUV pulses Open
Spectral lines of low-temperature nitrogen photoionized plasma were investigated. The photoionized plasma was created in the result of irradiation N 2 gas using laser plasma EUV radiation pulses. The source was based on a 10J/10ns Nd:YAG (…
View article: Dynamic stabilization of filamentation instability
Dynamic stabilization of filamentation instability Open
The paper presents a study on dynamic stabilization of filamentation instability driven by an electron beam introduced into a plasma. The results presented in the paper demonstrate that the filamentation instability is successfully stabili…
View article: Hydrodynamic modeling of laser interaction with micro-structured targets
Hydrodynamic modeling of laser interaction with micro-structured targets Open
A model is developed for numerical simulations of laser absorption in plasmas made of porous materials, with particular interest in low-density foams. Laser absorption is treated on two spatial scales simultaneously. At the microscale, the…
View article: Measurement of electromagnetic pulses generated during interactions of high power lasers with solid targets
Measurement of electromagnetic pulses generated during interactions of high power lasers with solid targets Open
A target irradiated with a high power laser pulse, blows off a large amount of charge and as a consequence the target itself becomes a generator of electromagnetic pulses (EMP) owing to high return current flowing to the ground through the…
View article: Simulations of proton beam characteristics for ELIMED Beamline
Simulations of proton beam characteristics for ELIMED Beamline Open
ELIMED Beamline should demonstrate the capability of laser-based particle accelerators for medical applications, mainly for proton radiotherapy of tumours which requires a sufficient number of accelerated protons with energy about 60 MeV a…
View article: Semiconductor Detectors for Observation of Multi-MeV Protons and Ions Produced by Lasers
Semiconductor Detectors for Observation of Multi-MeV Protons and Ions Produced by Lasers Open
The application of time-of-flight Faraday cups and SiC detectors for the measurement of currents of fast ions emitted by laser-produced plasmas is reported. Presented analysis of signals of ion detectors reflects the design and constructio…
View article: Controllable Laser Ion Acceleration
Controllable Laser Ion Acceleration Open
In this paper a future laser ion accelerator is discussed to make the laser-based ion accelerator compact and controllable. Especially a collimation device is focused in this paper. The future laser ion accelerator should have an ion sourc…
View article: Laser-driven high-energy proton beam with homogeneous spatial profile from a nanosphere target
Laser-driven high-energy proton beam with homogeneous spatial profile from a nanosphere target Open
A high-energy, high-yield proton beam with a good homogeneous profile has been generated from a nanosphere target irradiated by a short (30-fs), intense (7×10^{20} W/cm^{2}) laser pulse. A maximum proton energy of 30 MeV has been observed …
View article: Electromagnetic pulses produced by expanding laser-produced Au plasma
Electromagnetic pulses produced by expanding laser-produced Au plasma Open
The interaction of an intense laser pulse with a solid target produces large number of fast free electrons. This emission gives rise to two distinct sources of the electromagnetic pulse (EMP): the pulsed return current through the holder o…