A5086964157- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- High-pressure geophysics and materials
- Laser-Matter Interactions and Applications
- Advanced X-ray Imaging Techniques
- Particle Accelerators and Free-Electron Lasers
- Magnetic confinement fusion research
- Atomic and Molecular Physics
- Laser Design and Applications
- Nuclear Physics and Applications
- Geological and Geochemical Analysis
- Ion-surface interactions and analysis
- Laser Material Processing Techniques
- Particle accelerators and beam dynamics
- earthquake and tectonic studies
- X-ray Spectroscopy and Fluorescence Analysis
- Spectroscopy and Laser Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Radiation Therapy and Dosimetry
- Quantum optics and atomic interactions
- Quantum Information and Cryptography
- Ocular and Laser Science Research
- Mineralogy and Gemology Studies
- Orbital Angular Momentum in Optics
Spanish Center for Pulsed Lasers
2016-2025
Universidad Politécnica de Madrid
2023-2025
Universidad de Salamanca
2016-2025
University of Geneva
2020-2024
Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione
2024
Texas A&M University
2024
Donawa Lifescience Consulting (Italy)
2023
Centre National de la Recherche Scientifique
2013-2021
Laboratoire Kastler Brossel
2019-2021
École Normale Supérieure - PSL
2019-2021
Abstract X-ray phase contrast imaging (XPCI) is more sensitive to density variations than absorption radiography, which a crucial advantage when weakly-absorbing, low-Z materials, or steep gradients in matter under extreme conditions. Here, we describe the application of polychromatic laser-plasma source (duration ~0.5 ps, photon energy >1 keV) study laser-driven shock travelling plastic material. The XPCI technique allows for clear identification front as well small-scale features...
The majority of studies on laser-driven proton–boron nuclear reaction is based the measurement α-particles with solid-state tracks detector (Cr39). However, Cr39's interpretation difficult due to presence several other accelerated particles which can bias analysis. Furthermore, in some laser irradiation geometries, cross-checking measurements are almost impossible. In this case, numerical simulations play a very important role supporting experimental our work, we exploited different schemes...
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This work studied the pre-plasma that builds up in interactions of focused high-power PW-class lasers with solid targets at target surface facing laser beam, and its impact on global absorption efficiency as well spectral cut-off energy laser-generated proton beams. Our practical heuristic estimates were derived from example VEGA-3 CLPU. modeling results for expansion due to pedestal benchmarked by hydrodynamic simulations, revealing good agreement evolution before arrival main Gaussian...
Ion stopping in warm dense matter is a process of fundamental importance for the understanding properties plasmas, realization and interpretation experiments involving ion-beam-heated samples, inertial confinement fusion research. The theoretical description ion power difficult notably due to electron coupling degeneracy, measurements are still largely missing. In particular, low-velocity range, that features largest modelling uncertainties, remains virtually unexplored. Here, we report...
Ion acceleration from gaseous targets driven by relativistic-intensity lasers was demonstrated as early the late 1990s, yet most of experiments conducted to date have involved picosecond-duration, Nd:glass operating at low repetition rate. Here, we present measurements on interaction ultraintense <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mo>(</a:mo><a:mo>≈</a:mo><a:msup><a:mn>10</a:mn><a:mn>20</a:mn></a:msup><a:mspace width="0.28em"/><a:mi...
The Centro de Laseres Pulsados in Salamanca, Spain has recently started operation phase and the first user access period on 6 J 30 fs 200 TW system (VEGA 2) already at beginning of 2018. In this paper we report two commissioning experiments performed VEGA 2 preparation for campaign. been tested different configurations depending focusing optics targets used. One configuration (long focal length $F=130$ cm) is underdense laser–matter interaction where focused onto a low density gas-jet...
In this work, we present a novel and practical method for generating optical vortices in high-power laser systems. Off-axis spiral phase mirrors are used at oblique angles of incidence the beam path after amplification compression allowing generation almost any system. An off-axis configuration is possible via modification azimuthal gradient helix demonstrated with simple model using discrete staircase. This work presents design, fabrication, implementation both low
Strong electromagnetic pulses (EMP) are generated from intense laser interactions with solid-density targets, and can be guided by the target geometry, specifically through conductive connections to ground. We present an experimental characterization, time- spatial-resolved proton deflectometry, of discharge along wires including a coil, driven 0.5 ps, 50 J, 1e19 W/cm2 pulses. Proton-deflectometry data allows time-resolve first EMP due laser-driven charging then return ground stalk. Both...
The discovery of chirped pulse amplification has led to great improvements in laser technology, enabling energetic beams be compressed durations tens femtoseconds and focused a few micrometers. Protons with energies MeV can accelerated using, for instance, target normal sheath acceleration on secondary targets. Under such conditions, nuclear reactions occur, the production radioisotopes suitable medical application. use high-repetition lasers produce isotopes is competitive conventional...
Laser–plasma interaction (LPI) at intensities $10^{15}{-}10^{16}~\text{W}\cdot \text{cm}^{-2}$ is dominated by parametric instabilities which can be responsible for a significant amount of non-collisional absorption and generate large fluxes high-energy nonthermal electrons. Such regime paramount importance inertial confinement fusion (ICF) in particular the shock ignition scheme. In this paper we report on an experiment carried out Prague Asterix Laser System (PALS) facility to investigate...
A laser-driven particle source is exploited for the elemental and stratigraphic characterization of a nonhomogeneous sample.
We describe an experiment performed at the LULI laser facility using advanced radiographic technique that allowed obtaining 2D, spatially resolved images of a shocked buried-code-target. The is suitable for applications on Fast Ignition as well Warm Dense Matter research. In our experiment, it to show cone survival up Mbar pressures and measure shock front velocity fluid associated laser-generated shock. This one point polar porous carbon.
X-ray phase-contrast imaging (XPCI) is a versatile technique with applications in many fields, including fundamental physics, biology and medicine. Where absorption radiography requires high density ratios for effective imaging, the image contrast XPCI function of gradient. In this letter, we apply to study laser-driven shock waves. Our experiment was conducted at Petawatt High-Energy Laser Heavy Ion EXperiments (PHELIX) GSI. Two laser beams were used: one launch wave other generate an...
We study the Bloch-Messiah reduction of parametric down-conversion light in pulsed regime with a nondegenerate phase matching providing generation twin beams. find that this case every squeezing eigenvalue has multiplicity at least two. discuss problem ambiguity definition eigenmodes and develop two approaches to unique determination latter. First, we show modal functions can be tailored from Schmidt modes signal idler Alternatively, they found as solution an for associated Hermitian matrix....
Abstract Fluid targets are attractive for laser-driven ion acceleration at high-repetition-rate laser facilities. In particular, liquid have several interesting features since they can regenerate in situ and debris-free (or little) operate a high repetition rate. Here, we report MeV-range proton by the interaction of VEGA-2 system with micrometer-thick water sheet target vacuum (10 −4 mbar) environment. The was running continuously this pressure 4 h more than 1000 shots were performed. Two...
Abstract The recent achievement of fusion ignition with laser-driven technologies at the National Ignition Facility sets a historic accomplishment in energy research. This paves way for using laser inertial as viable approach future production. Europe has unique opportunity to empower research this field internationally, and scientific community is eager engage journey. We propose establishing European programme on inertial-fusion mission demonstrate direct-drive scheme develop pathway...
Abstract The VEGA-3 laser system at the Centro de Láseres Pulsados delivers pulses up to 1 PW Hz repetition rate, focused intensities <?CDATA $2.5\times 10^{20}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mn>2.5</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mrow> <mml:mn>20</mml:mn> </mml:mrow> </mml:msup> </mml:math> W cm −2 . A versatile and compact solid target suitable for 0.05 is presented which can operate in challenging...
We present a scintillator-based detector able to measure the proton energy and spatial distribution with relatively simple design. It has been designed built at Spanish Center for Pulsed Lasers (CLPU) in Salamanca tested accelerator Centro de Micro-Análisis Materiales (CMAM) Madrid. The is capable of being set high repetition rate (HRR) mode reproduces performance radiochromic film detector. represents new class online detectors laser–plasma physics experiments newly emerging power laser...
Abstract The landscape of fusion research has shifted significantly. Recent breakthroughs in both inertial and magnetic confinement fusion, along with early insights into the physics burning plasmas, now challenge long-standing joke that is always 50 years away. Growing political interest light climate change, quest for energy supply future emergence start-ups are some aspect have brought community an unprecedented public spotlight. However, this development comes two contrasting sides. On...
Whereas most of the reports on nonlinear properties micro- and nanostructures address generation distinct signals, such as second or third harmonic, here we demonstrate that novel dual output lasers recently developed for microscopy can readily increase accessible parameter space enable simultaneous excitation detection multiple emission orders several harmonics signals stemming from various sum difference frequency mixing processes. This rich response, which in our case features 10...
A free-electron laser (FEL) operating in the quantum regime can provide a compact and monochromatic x-ray source. Here we present complete model for FEL with wiggler three spatial dimensions, based on discrete Wigner-function formalism taking into account longitudinal momentum quantization. The describes temporal evolution of electron radiation beams, including diffraction, propagation, profile emittance effects. transverse motion is described suitable classical limit, since typical beam...