A5032997881- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Magnetic confinement fusion research
- High-pressure geophysics and materials
- Atomic and Molecular Physics
- Laser-Matter Interactions and Applications
- Nuclear Physics and Applications
- Ion-surface interactions and analysis
- Advanced X-ray Imaging Techniques
- Plasma Diagnostics and Applications
- Solar and Space Plasma Dynamics
- X-ray Spectroscopy and Fluorescence Analysis
- Astro and Planetary Science
- Laser Design and Applications
- Pulsed Power Technology Applications
- Diamond and Carbon-based Materials Research
- Gamma-ray bursts and supernovae
- Laser Material Processing Techniques
- Mass Spectrometry Techniques and Applications
- Stellar, planetary, and galactic studies
- Electrohydrodynamics and Fluid Dynamics
- Particle Detector Development and Performance
- Semiconductor materials and devices
- Astronomy and Astrophysical Research
- Ionosphere and magnetosphere dynamics
Princeton Plasma Physics Laboratory
2021-2024
Princeton University
2024
Spanish Center for Pulsed Lasers
2017-2023
Universidad de Salamanca
2019-2021
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...
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...
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...
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...
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.
Magnetic fields generated from a laser-foil interaction are measured with high fidelity using proton radiography scheme x-ray fiducials. In contrast to prior findings under similar experimental conditions, this technique reveals the self-generated, Biermann-battery extend beyond edge of expanding plasma plume radius over 3.5 mm by <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mi>t</a:mi></a:math>=<b:math...
We present measurements of magnetic fields generated in laser-driven coil targets irradiated by laser pulses nanosecond duration, 1.053 μm wavelength, 500 J energy, and ∼1015 W/cm2 intensity, at the LULI2000 facility. Using two perpendicular probing axes, proton deflectometry is used to characterize current static charge different times. Results reveal various deflection features that can be unambiguously linked a looping quasi-steady well-understood polarity or charging surface. Measured...
High repetition rate laser systems enable new strategies for diagnosing plasma behavior with large datasets. Here, we define an ensemble technique that relies on randomized targeting of x-ray tracer micro-stripes. On each shot, a high-intensity pulse is focused solid target Ti stripes embedded in Al foil, randomly micro-stripe, portion stripe, or gap between stripes. High-resolution, time-integrated spectrometers capture line emission from the micro-stripe heated to sufficiently high...
Abstract We report on the development of a highly directional, narrow energy band, short time duration proton beam operating at high repetition rate. The protons are generated with an ultrashort-pulse laser interacting solid target and converted to pencil-like narrow-band using compact magnet-based selector. experimentally demonstrate production 500 keV spread well below 10 $$\% $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>%</mml:mo> </mml:math> , pulse 260 ps. loss...
We report a technique of proton deflectometry that uses grid and an in situ reference x-ray image for precise measurements magnetic fields high-energy-density plasmas. A D3He fusion implosion provides bright point source both protons x-rays, which is split into beamlets by grid. The undergo deflections as they propagate through the plasma region interest, whereas x-rays travel along straight lines. image, therefore, zero-deflection image. line-integrated are inferred from shifts between...
Abstract The double laser pulse approach to relativistic electron beam (REB) collimation in solid targets has been investigated at the LULI-ELFIE facility. In this scheme two collinear pulses are focused onto a target with given intensity ratio and time delay generate REBs. magnetic field generated by first laser-driven REB is used guide second delayed pulse. We show how can be controlled properly adjusting of focus size between pulses. found that maximum clearly dependent on focal spot...
Recent developments in ultrashort and intense laser systems have enabled the generation of short brilliant proton sources, which are valuable for studying plasmas under extreme conditions high-energy-density physics. However, developing sensors energy selection, focusing, transport, detection these sources remains challenging. This work presents a novel simple design an isochronous magnetic selector capable angular selection significantly reducing temporal spread compared to current state...
X-ray line emission spectra can thoroughly characterize hot plasmas, especially when shapes and ratios convey distinct aspects of plasma conditions. However, the high spectral resolution required for observing is often at odds with large bandwidth to observe many across a wide range. One strategy obtain over use multiple crystals calibrated reflectivity so that intensities different be compared. Here, we explore low-resolution, wide-bandwidth mica survey spectrometer infer relative two...
We report a design and implementation of proton deflectometry with an in situ reference x-ray image mesh to precisely measure non-uniform magnetic fields expanding plasmas at the OMEGA EP laser facilities. The technique has been developed sources generated from both directly driven capsule implosions short pulse laser-solid interactions. accuracy measurement depends on contrast images. present numerical analytic studies optimize using variety materials grid spacings. Our results show clear...
The second and final year of the Erasmus Plus programme ‘Innovative Education Training in high power laser plasmas’, otherwise known as PowerLaPs, is described. PowerLaPs employs an innovative paradigm that it a multi-centre programme, where teaching takes place five separate institutes with range different aims styles delivery. ‘in-class’ time limited to 4 weeks year, spans 2 years. train students from across Europe theoretical, applied laboratory skills relevant pursuit research plasma...
The results of commissioning experiments – betatron radiation and proton acceleration from gaseous solid targets at the petawatt user facility, Centro de Láseres Pulsados in Salamanca, Spain, are reviewed along with facility capabilities.
Optical imaging is an ancient branch of dating back to thousands years. Radiographic and tomography (RadIT), including the first use X-rays by Wilhelm Röntgen, then, γ -rays, energetic charged particles, neutrons, etc. are about 130 years young. The synergies between optical radiographic can be cast in framework these building blocks: Physics, Sources, Detectors, Methods , Data Science as described Appl. Opt. 61 RDS1 ( 2022 ) APOPAI 0003-6935 10.1364/AO.455628 . has expanded include...
We present results from X-ray imaging of high-aspect-ratio magnetic reconnection experiments driven at the National Ignition Facility. Two parallel, self-magnetized, elongated laser-driven plumes are produced by tiling 40 laser beams. A layer is formed collision plumes. gated framing pinhole camera with micro-channel plate (MCP) detector produces multiple images through various filters formation and evolution both current sheet. As diagnostic integrates plasma self-emission along line sight,...
We present the direct experimental observation of formation a diamagnetic cavity and magneto-Rayleigh-Taylor (MRT) instability in <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mi>β</a:mi><a:mo>≈</a:mo><a:mn>1</a:mn></a:mrow></a:math> high energy density plasma. Proton radiography is used to measure two dimensional path-integrated magnetic field laser-produced plasma propagating parallel preimposed field. Flutelike structures, associated with MRT instability, are observed...
We present results from x-ray imaging of high-aspect-ratio magnetic reconnection experiments driven at the National Ignition Facility. Two parallel, self-magnetized, elongated laser-driven plumes are produced by tiling 40 laser beams. A layer is formed collision plumes. gated framing pinhole camera with micro-channel plate detector produces multiple images through various filters formation and evolution both current sheet. As diagnostic integrates plasma self-emission along line sight,...
Proton radiography is a central diagnostic technique for measuring electromagnetic (EM) fields in high-energy-density, laser-produced plasmas. In this technique, protons traverse the plasma where they accumulate small EM deflections which lead to variations proton fluence pattern on detector. Path-integrated can then be extracted from image through an inversion process. work, experiments of laser-driven foils were conducted OMEGA laser and magnetic field reconstructions performed using both...
Abstract Blast waves have been produced in solid target by irradiation with short-pulse high-intensity lasers. The mechanism of production relies on energy deposition from the hot electrons laser–matter interaction, producing a steep temperature gradient inside target. Hot also produce preheating material ahead blast wave and expansion rear side, which results complex propagation dynamic. Several diagnostics used to characterize electron source, induced velocity wave. Results are compared...