Results 21 to 30 of about 115,913 (266)

Structure-Mediated Excitation of Air Plasma and Silicon Plasma Expansion in Femtosecond Laser Pulses Ablation

open access: yesResearch, 2018
Femtosecond laser-induced surface structures upon multiple pulses irradiation are strongly correlated with the pulse number, which in turn significantly affects successive laser-material interactions.
Qingsong Wang   +9 more
doaj   +1 more source

Investigation of the wakefield generation in the interaction of the intense laser pulse with gas [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2021
In the present work, the formation of the wakefield during the interaction of intense laser pulse with a gas medium has been investigated by using PIC simulation code, including the ionization process.
E. Khalilzadeh, M.J. Jafari, Z. Dehghany
doaj   +1 more source

Effect of external magnetic field on wakefield generation in underdense plasma slab using backward semi-Lagrangian Vlasov code

open access: yesPhysical Review Accelerators and Beams, 2019
Laser wakefield excitation in the interaction of femtosecond laser pulse with an underdense thin magnetized plasma slab is studied by one dimensional relativistic Vlasov-Maxwell system of equations.
S. N. Razavinia, M. Ghorbanalilu
doaj   +1 more source

Observation of plasma confinement in picosecond laser-plasma interactions

open access: yesPhysical Review E, 1993
Novel features associated with multiterawatt laser interactions with solid targets at incident irradiances in the range (1.0--12.0)\ifmmode\times\else\texttimes\fi{}${10}^{17}$ W ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}2}$ are presented. Collimation of the plasma flow normal to the target surface has been observed in time-integrated x-ray images and ion-
Bell, A   +13 more
openaire   +3 more sources

Scaling of Laser-Plasma Interactions with Laser Wavelength and Plasma Size [PDF]

open access: yes, 1984
Laboratory experiments on the wavelength scaling of laser-plasma interactions have thus far been restricted to relatively modest laser energies (EL ≤ 200 J), short pulse lengths (τL ≤ 2 nsec), and small focal spot diameters (d ≲, 200 µm). Thus the plasma sizes have been quite modest.
Max, C. E.   +7 more
openaire   +1 more source

First laser–plasma interaction experiments on Shenguang Octopus laser facility [PDF]

open access: yesMatter and Radiation at Extremes
On laser facilities for achieving inertial confinement fusion ignition, several beams are usually bundled together and injected into the target chamber through a common port.
T. Gong   +34 more
doaj   +1 more source

Mathematical models for laser-plasma interaction [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2005
Summary: We address here mathematical models related to the laser-plasma interaction. After a simplified introduction to the physical background concerning the modelling of the laser propagation and its interaction with a plasma, we recall some classical results about the geometrical optics in plasmas.
openaire   +1 more source

A cellular automaton model of laser–plasma interactions

open access: yesLaser and Particle Beams, 2001
This paper deals with the realization of a CA model of the physical interactions occurring when high-power laser pulses are focused on plasma targets. The low-level and microscopic physical laws of interactions among the plasma and the photons in the pulse are described. In particular, electron–electron interaction via the Coulomb force and photon–
BATANI D.   +3 more
openaire   +4 more sources

Transition from Coherent to Stochastic electron heating in ultrashort relativistic laser interaction with structured targets

open access: yesScientific Reports, 2017
Relativistic laser interaction with micro- and nano-scale surface structures enhances energy transfer to solid targets and yields matter in extreme conditions. We report on the comparative study of laser-target interaction mechanisms with wire-structures
G. Cristoforetti   +14 more
doaj   +1 more source

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