A5027700341- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Laser-Matter Interactions and Applications
- Laser Design and Applications
- Advanced X-ray Imaging Techniques
- High-pressure geophysics and materials
- Advanced Fiber Laser Technologies
- Laser Material Processing Techniques
- Particle Accelerators and Free-Electron Lasers
- Pulsed Power Technology Applications
- Radiation Therapy and Dosimetry
- Solid State Laser Technologies
- Astro and Planetary Science
- Electrowetting and Microfluidic Technologies
- Radiation Detection and Scintillator Technologies
- Advanced X-ray and CT Imaging
- Near-Field Optical Microscopy
- Modular Robots and Swarm Intelligence
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Advanced Radiotherapy Techniques
- Optical Systems and Laser Technology
- Orbital Angular Momentum in Optics
- Microfluidic and Bio-sensing Technologies
- Particle accelerators and beam dynamics
Extreme Light Infrastructure Beamlines
2021-2024
Czech Technical University in Prague
2021-2024
Czech Academy of Sciences, Institute of Physics
2017-2022
Azienda Universitaria Ospedaliera Consorziale - Policlinico Bari
2022
Scuola Normale Superiore
2012
We show the laser-driven acceleration of unprecedented, collimated (2 mrad divergence), and quasi-monoenergetic (25% energy spread) electron beams with up to 50 MeV at 1 kHz repetition rate. The laser driver is a multi-cycle (15 fs) optical parametric chirped pulse amplification system, operating 26 mJ (1.7 TW). scalability technology reported in this work pave way toward developing high-brilliance x-ray sources for medical imaging innovative devices brain cancer treatment represent step...
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 fluid-dynamic simulations experimental interferometric measurements. studied different configurations, profiles most suitable for acceleration discussed.
Abstract Tight focusing with very small f -numbers is necessary to achieve the highest at-focus irradiances. However, tight imposes strong demands on precise target positioning in-focus on-target irradiance. We describe several near-infrared, visible, ultraviolet and soft hard X-ray diagnostics employed in a ∼10 22 W/cm 2 laser–plasma experiment. used nearly 10 J total energy femtosecond laser pulses focused into an approximately 1.3-μm focal spot 5–20 μm thick stainless-steel targets....
By exploiting the resonant coupling between a travelling wave and stationary modes of cavity, we present first scheme for integrated automatic interaction-free surface acoustic routing fluids. Our opens way to implementation logic gates based on instantaneous liquid distribution.
We demonstrate loss-free generation of 3 mJ, 1 kHz, few-cycle (5 fs at 750 nm central wavelength) double pulses with a pulse peak separation from 10 to 100 fs, using helium-filled hollow core fiber (HCF) and chirped mirror compressor. Crucial our scheme are simulation-based modifications the spectral phase amplitude oscillator seed eliminate deleterious effects self-focusing nonlinear pickup in amplifier. The shortest separations enabled by tunable splitting HCF
We show the laser-driven acceleration of unprecedented, collimated (2 mrad) and quasi-monoenergetic (dE/E = 25%) electron beams with energy up to 50 MeV at 1 kHz repetition rate. The laser driver is a multi-cycle (15 fs) OPCPA system, operating 26 mJ (1.7 TW). scalability technology reported in this work pave way towards developing high brilliance X-ray sources for medical imaging, innovative devices brain cancer treatment represent step forward realization GeV beamline.
Laser wake field acceleration (LWFA) is an efficient method to accelerate electron beams high energy. This a benefit in research infrastructures where multidisciplinary environment can from the different secondary sources enabled, having opportunity extend range of applications that accessible and develop new ideas for fundamental studies. The ELI Beamline project oriented deliver such scientific community both applied research. driver laser Ti:Sa diode-pumped system , running at maximum...
In this study we present an analytical description of the ultrafast localized surface plasmon and magnetic resonance dynamics in a single nanoparticle (Ag or Si), driven by ultrashort (fs time scale) Gaussian pulse. Three possible scenarios have been found depending on incident field, i.e., pulse duration much shorter than, similar to, longer than (LSPR) lifetime. A rich physics arises for ${\ensuremath{\tau}}_{\mathrm{pulse}}<{\ensuremath{\tau}}_{\mathrm{LSPR}}$, even linear regime. The is...
The TERESA (TEstbed for high REpetition-rate Sources of Accelerated particles) target area, recently commissioned with the L3-HAPLS laser at Extreme Light Infrastructure (ELI)-Beamlines, is presented. Its key technological sections (vacuum and control systems, parameters beam transport up to target) are described, along an overview available plasma diagnostics targetry, tested relativistic intensities. Perspectives laser–plasma experimental area ELI-Beamlines briefly discussed.
Using an analytical model and computer simulation, we show that the wakefield driven by ultrashort laser pulse in high-density plasma periodically reverses its polarity due to carrier-envelope phase shift of driver. The reversal occurs on spatial scales shorter than typical length considered for electron acceleration with laser-wakefield mechanism. Consequently, energies accelerated electrons are significantly affected. results obtained important under conditions relevant present-day...
We demonstrate pulse shaping of few-cycle terawatt-scale pulses without energy loss. In particular, we double generation with separations as short ~10 fs.
We demonstrate a method to characterize the beam energy, transverse profile, charge, and dose of pulsed electron generated by 1 kHz TW laser-plasma accelerator. The is based on imaging with scintillating screen in an inhomogeneous, orthogonal magnetic field produced wide-gap dipole. Numerical simulations were developed reconstruct parameters accurately. has been experimentally verified calibrated using medical LINAC. energy measurement accuracy 6–20 MeV range proven be better than 10%....
The high energy electron experimental platform * at ELI-Beamlines will give to the users tunable beams with low spread and divergence, by employing laser-wakefield-acceleration scheme (LWFA) driven PW-class laser system working 10 Hz. offer great flexibility over beam parameter space is foreseen exploit different targets, acceleration laser-guiding advanced schemes. In this paper we summarize about more compact accelerators that can be envisioned use of really short (near single-cycle)...
The plasma channel formation in the focus of a knife-like nanosecond laser pulse irradiating gas target is studied theoretically, and gas-dynamics computer simulations. distribution electromagnetic field region, obtained analytically, used to calculate energy deposition plasma, which then implemented magnetohydrodynamic code. modelling evolution shows that profile, can guide pulse, formed by tightly focused short lasers. results simulations show proper choice convergence angle beam...
We investigate the evolution of radial profile a high-power short-pulse laser interacting with underdense plasma, and in particular, we concentrate on transverse electromagnetic rings, which are formed due to radiation defocusing induced by excitation Langmuir waves. illustrate physical processes involved formation such structures analytically use three-dimensional numerical simulations reveal relationships among ring properties parameters plasma. Within studied parameter range, find that up...
The ELI-ELBA scientific program is devoted to the experimental investigation of different fundamental problems by using a combination multi-PW and sub-PW lasers available at ELI-Beamlines research facility. core plasma technology used laser wakefield acceleration, which needed produce ultra-relativistic electron beams in extremely short distances very high accelerating gradients (>100 MeV/mm). experiments driven systems aim acceleration multi-GeV for counter-propagating them with intense...
A new source of relativistic electrons based on laser wakefield acceleration has been recently built and commissioned at ELI-Beamlines user facility. This platform is proposed for the experimental study radiation to electronics effects components devices dimensioned laboratory low Earth orbit applications, such as picosatellite class spacecrafts, e.g. CubeSat. The device configured represent energy range trapped in Van Allen belts, 0.1 – 10 MeV, ultra-high dose rates radiation. developed...
Using analytical methods and computer simulations, we investigate physical processes which lead to the formation of ring-shaped electromagnetic electron structures in laser-plasma interaction. We observe that as intense laser pulse excites a nonlinear Langmuir wave an underdense plasmas, significant portion is refracted outwards propagation direction due interactions with thin, high-density walls surrounding cavities. Because radial symmetry, light forms distinct ring encircles driver pulse....
Conceptual design of a radiation environment test platform based on the laser wakefield accelerator has been developed using SIMION finite-difference method and FLUKA Monte Carlo numerical models. Developed models include permanent magnet dipole electron beam spectrometer with two orthogonal luminescent screens tungsten collimator. Parameters have evaluated for kinetic energies beams in rage 0.1 – 100 MeV. The is proposed as laboratory analogue relativistic electrons trapped at Van Allen...
Electron-laser colliders are a unique tool to investigate different fundamental phenomena, as for example the Breit-Wheeler process. Several experiments working in this direction of now, both based on conventional electron accelerator technology or all-optical schemes. In landscape high power laser facilities, ELI-Beamlines has two lasers which have potential enable laser-electron collisions at unprecedented parameters: L3-HAPLS (30 J, 30 fs, 10 Hz) and L4-Aton (1.5 kJ, 150 100s shots/day)....
The extremely high electric fields sustainable by a plasma make the Laser Wakefield Acceleration (LWFA) most compact technique to generate very highly relativistic electron beams in GeV regime. limited repetition rate and low efficiency of this technology has, date, prevented unleash its full potential as unique source for basic research, biomedical applications flux sources secondary radiations hard X-rays gamma-rays. In recent years different works show new research direction on...