High-energy Quantum Dynamics in Ultra-Intense Laser Pulses

2007 ◽  
Author(s):  
Carsten Müller ◽  
Guido R. Mocken ◽  
Karen Z. Hatsagortsyan ◽  
Christoph H. Keitel ◽  
George Maroulis ◽  
...  
Keyword(s):  
Quantum Dynamics ◽  
Laser Pulses ◽  
High Energy ◽  
Intense Laser ◽  
Intense Laser Pulses ◽  
Energy Quantum

scholarly journals Concept of generation of extremely compressed high-energy electron bunches in several interfering intense laser pulses with tilted amplitude fronts

2012 ◽  
Vol 31 (1) ◽  
pp. 23-28 ◽  
Author(s):  
V.V. Korobkin ◽  
M.Yu. Romanovskiy ◽  
V.A. Trofimov ◽  
O.B. Shiryaev
Keyword(s):  
Laser Pulses ◽  
High Energy ◽  
Intense Laser ◽  
High Energy Electron ◽  
Speed Of Light ◽  
Electron Bunches ◽  
Newton Equation ◽  
High Energies ◽  
Neutral Gas ◽  
Intense Laser Pulses

AbstractA new concept of generating tight bunches of electrons accelerated to high energies is proposed. The electrons are born via ionization of a low-density neutral gas by laser radiation, and the concept is based on the electrons acceleration in traps arising within the pattern of interference of several relativistically intense laser pulses with amplitude fronts tilted relative to their phase fronts. The traps move with the speed of light and (1) collect electrons; (2) compress them to extremely high density in all dimensions, forming electron bunches; and (3) accelerate the resulting bunches to energies of at least several GeV per electron. The simulations of bunch formation employ the Newton equation with the corresponding Lorentz force.

scholarly journals Tc-99m production with ultrashort intense laser pulses

2014 ◽  
Vol 32 (4) ◽  
pp. 605-611 ◽  
Author(s):  
V. Yu. Bychenkov ◽  
A. V. Brantov ◽  
G. Mourou
Keyword(s):  
Laser Pulse ◽  
Thin Foil ◽  
Laser Pulses ◽  
High Energy ◽  
Intense Laser ◽  
Pic Simulation ◽  
Intense Laser Pulses ◽  
Fs Laser ◽  
Proton Generation ◽  
Coherent Amplification

AbstractThe interaction of a relativistic short laser pulse with thin foil is studied using 3D PIC simulations in the context of optimized high-energy proton generation for nuclear medicine and pharmacy. As an example, we analyze the Tc-99m yield from the Mo-100(p,2n)Tc-99m reaction with the International Coherent Amplification Network (ICAN) concept defined by a 10 J pulse energy and 10 kHz repetition rate. Based on 3D PIC simulation it has been demonstrated that normally incident 100 fs laser pulse with maximum intensity of 5 × 1021 W/cm2 is able to generate 1011 protons with energy upto 45 MeV from thin semi-transparent CH2 target. Such laser-produced proton beam after 6 hours bombardment of the thick metallic Mo-100 target gives around 300 Gbq activities of Tc-99m isotope. This gives reason to believe that laser technology for producing technetium is possible with ICAN concept to replace the traditional scheme through the fission of weapons-grade uranium.

Excitation of muonic molecules ddμ and dtμ by super-intense attosecond soft X-ray laser pulses: Shaped post-laser-pulse muonic oscillations and enhancement of nuclear fusion

2014 ◽  
Vol 23 (09) ◽  
pp. 1430014 ◽  
Author(s):  
André D. Bandrauk ◽  
Guennaddi K. Paramonov
Keyword(s):  
Laser Pulse ◽  
Quantum Dynamics ◽  
Power Spectra ◽  
Laser Pulses ◽  
Molecular Ions ◽  
Intense Laser ◽  
Muon Catalyzed Fusion ◽  
Three Dimensional Model ◽  
Intense Laser Pulses ◽  
Oppenheimer Approximation

The quantum dynamics of muonic molecular ions ddμ and dtμ excited by linearly polarized along the molecular (z)-axis super-intense laser pulses is studied beyond the Born–Oppenheimer approximation by the numerical solution of the time-dependent Schrödinger equation within a three-dimensional model, including the internuclear distance R and muon coordinates z and ρ. The peak-intensity of the super-intense laser pulses used in our simulations is I0 = 3.51 × 1022 W/cm2 and the wavelength is λl = 5 nm. In both ddμ and dtμ, expectation values 〈z〉 and 〈 ρ 〉 of muon demonstrate "post-laser-pulse" oscillations after the ends of the laser pulses. In ddμ post-laser-pulse z-oscillations appear as shaped nonoverlapping "echo-pulses". In dtμ post-laser-pulse muonic z-oscillations appear as comparatively slow large-amplitude oscillations modulated with small-amplitude pulsations. The post-laser-pulse ρ-oscillations in both ddμ and dtμ appear, for the most part, as overlapping "echo-pulses". The post-laser-pulse oscillations do not occur if the Born–Oppenheimer approximation is employed. Power spectra generated due to muonic motion along both optically active z and optically passive ρ degrees of freedom are calculated. The fusion probability in dtμ can be increased by more than 11 times by making use of three sequential super-intense laser pulses. The energy released from the dt fusion in dtμ can by more than 20 GeV exceed the energy required to produce a usable muon and the energy of the laser pulses used to enhance the fusion. The possibility of power production from the laser-enhanced muon-catalyzed fusion is discussed.

scholarly journals On-target temporal characterization of optical pulses at relativistic intensity

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Vyacheslav E. Leshchenko ◽  
Alexander Kessel ◽  
Olga Jahn ◽  
Mathias Krüger ◽  
Andreas Münzer ◽  
...  
Keyword(s):  
Field Experiments ◽  
Second Harmonic ◽  
Laser Pulses ◽  
High Energy ◽  
Intense Laser ◽  
Optical Pulses ◽  
Precise Knowledge ◽  
Intense Laser Pulses ◽  
Underlying Processes

Abstract High-field experiments are very sensitive to the exact value of the peak intensity of an optical pulse due to the nonlinearity of the underlying processes. Therefore, precise knowledge of the pulse intensity, which is mainly limited by the accuracy of the temporal characterization, is a key prerequisite for the correct interpretation of experimental data. While the detection of energy and spatial profile is well established, the unambiguous temporal characterization of intense optical pulses, another important parameter required for intensity evaluation, remains a challenge, especially at relativistic intensities and a few-cycle pulse duration. Here, we report on the progress in the temporal characterization of intense laser pulses and present the relativistic surface second harmonic generation dispersion scan (RSSHG-D-scan)—a new approach allowing direct on-target temporal characterization of high-energy, few-cycle optical pulses at relativistic intensity.

scholarly journals The High Energy Density Scientific Instrument at the European XFEL

2021 ◽  
Vol 28 (5) ◽  
Author(s):  
Ulf Zastrau ◽  
Karen Appel ◽  
Carsten Baehtz ◽  
Oliver Baehr ◽  
Lewis Batchelor ◽  
...  
Keyword(s):  
Energy Density ◽  
Laser Pulses ◽  
High Energy ◽  
High Energy Density ◽  
Intense Laser ◽  
Scientific Instrument ◽  
X Ray ◽  
Intense Laser Pulses ◽  
Pulsed Magnets ◽  
Beam Parameters

The European XFEL delivers up to 27000 intense (>1012 photons) pulses per second, of ultrashort (≤50 fs) and transversely coherent X-ray radiation, at a maximum repetition rate of 4.5 MHz. Its unique X-ray beam parameters enable groundbreaking experiments in matter at extreme conditions at the High Energy Density (HED) scientific instrument. The performance of the HED instrument during its first two years of operation, its scientific remit, as well as ongoing installations towards full operation are presented. Scientific goals of HED include the investigation of extreme states of matter created by intense laser pulses, diamond anvil cells, or pulsed magnets, and ultrafast X-ray methods that allow their diagnosis using self-amplified spontaneous emission between 5 and 25 keV, coupled with X-ray monochromators and optional seeded beam operation. The HED instrument provides two target chambers, X-ray spectrometers for emission and scattering, X-ray detectors, and a timing tool to correct for residual timing jitter between laser and X-ray pulses.

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