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Akademický článek
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Autor:
Liseykina, T. V., Ceccherini, F., Cornolti, F., Echkina, E. Yu., Macchi, A., Pegoraro, F., Borghesi, M., Kar, S., Romagnani, L., Bulanov, S. V., Willi, O., Galimberti, M.
In recent experiments of laser pulse interaction at relativistic intensities with a low density plasma, the proton radiography technique showed evidence of long--lived field structures generated after the self-channeling of the laser pulse. We presen
Externí odkaz:
http://arxiv.org/abs/physics/0702177
Autor:
Kar, S., Borghesi, M., Cecchetti, C. A., Romagnani, L., Ceccherini, F., Liseykina, T. V., Macchi, A., Jung, R., Osterholz, J., Willi, O., Galimberti, M., Gizzi, L. A., Schiavi, A., Heathcote, R.
The dynamics of transient electric fields generated by the interaction of high intensity laser pulses with underdense plasmas has been studied experimentally with the proton projection imaging technique. The formation of a charged channel, the propag
Externí odkaz:
http://arxiv.org/abs/physics/0701332
The dynamics of electric field generation and radial acceleration of ions by a laser pulse of relativistic intensity propagating in an underdense plasma has been investigated using an one-dimensional electrostatic, ponderomotive model developed to in
Externí odkaz:
http://arxiv.org/abs/physics/0701139
We consider a system of partial differential equations, of interest to plasma physics, and provide all its Lie point symmetries, with their respective invariant solutions. We also discuss some of its conditional and partial symmetries. We finally sho
Externí odkaz:
http://arxiv.org/abs/math-ph/0411051
The stationary state of a spherically symmetric plasma configuration is investigated in the limit of immobile ions and weak collisions. Configurations with small radii are positively charged as a significant fraction of the electron population evapor
Externí odkaz:
http://arxiv.org/abs/physics/0411051
Publikováno v:
Plasma Phys. Control. Fusion 47, 521-529 (2005)
The expansion dynamics of a finite size plasma is examined from an analytical perspective. Results regarding the charge distribution as well as the electrostatic potential are presented. The acceleration of the ions and the associated cooling of the
Externí odkaz:
http://arxiv.org/abs/physics/0405030
The generation of harmonics by atoms interacting with two circularly polarized and frequency related laser fields is addressed through ab initio numerical simulations. A detailed charaterization of a few specific harmonics is given. In particular, th
Externí odkaz:
http://arxiv.org/abs/physics/0311032
The generation of harmonics by atoms or ions in a two-color, coplanar field configuration with commensurate frequencies is investigated through both, an analytical calculation based on the Lewenstein model and the numerical ab initio solution of the
Externí odkaz:
http://arxiv.org/abs/physics/0211110