Zobrazeno 1 - 10
of 423
pro vyhledávání: '"AMIRANOFF, F."'
Ultra-short high-power lasers can deliver extreme light intensities ($\ge 10^{20}$ W/cm$^2$ and $\leq 30 f$s) and drive large amplitude Surface Plasma Wave (SPW) at over-dense plasma surface. The resulting current of energetic electron has great inte
Externí odkaz:
http://arxiv.org/abs/2108.06221
Autor:
Pérez, F., Amiranoff, F., Briand, C., Depierreux, S., Grech, M., Lancia, L., Loiseau, P., Marquès, J. -R., Riconda, C., Vinci, T.
Type-III-burst radio signals can be mimicked in the laboratory via laser-plasma interaction. Instead of an electron beam generating Langmuir waves (LW) in the interplanetary medium, the LWs are created by a laser interacting with a millimeter-sized p
Externí odkaz:
http://arxiv.org/abs/2103.09503
Autor:
Marini, S., Kleij, P. S., Pisani, F., Amiranoff, F., Grech, M., Macchi, A., Raynaud, M., Riconda, C.
Publikováno v:
Phys. Rev. E 103, 021201 (2021)
We propose to use ultra-high intensity laser pulses with wavefront rotation (WFR) to produce short, ultra-intense surface plasma waves (SPW) on grating targets for electron acceleration. Combining a smart grating design with optimal WFR conditions id
Externí odkaz:
http://arxiv.org/abs/2101.01635
Autor:
Marquès, J. -R., Briand, C., Amiranoff, F., Depierreux, S., Grech, M., Lancia, L., Pérez, F., Sgattoni, A., Vinci, T., Riconda, C.
Publikováno v:
Phys. Rev. Lett. 124, 135001 (2020)
A new experimental platform based on laser-plasma interaction is proposed to explore the fundamental processes of wave coupling at the origin of interplanetary radio emissions. It is applied to the study of electromagnetic (EM) emission at twice the
Externí odkaz:
http://arxiv.org/abs/2003.07747
Joule-level high effiency energy transfer to sub-picosecond laser pulses by a plasma-based amplifier
Autor:
Marquès, J. -R., Lancia, L., Gangolf, T., Blecher, M., Bolaños, S., Fuchs, J., Willi, O., Amiranoff, F., Berger, R. L., Chiaramello, M., Weber, S., Riconda, C.
Publikováno v:
Phys. Rev. X 9, 021008 (2019)
Laser plasma amplification of sub-picosecond pulses above the Joule level is demonstrated, a major milestone for this scheme to become a solution for the next-generation of ultra-high intensity lasers. By exploring over 6 orders of magnitude the infl
Externí odkaz:
http://arxiv.org/abs/1812.09229
Autor:
Niel, F., Riconda, C., Amiranoff, F., Lobet, M., Derouillat, J., Pérez, F., Vinci, T., Grech, M.
Soon available multi petawatt ultra-high-intensity (UHI) lasers will allow us to probe high-amplitude electromagnetic fields interacting with either ultra-relativistic electron beams or hot plasmas in the so-called moderately quantum regime. The corr
Externí odkaz:
http://arxiv.org/abs/1802.02927
Publikováno v:
Phys. Rev. E 97, 043209 (2018)
Radiation-reaction in the interaction of ultra-relativistic electrons with a strong external electromagnetic field is investigated using a kinetic approach in the weakly quantum regime ($\chi \lesssim 1$, with $\chi$ the electron quantum parameter).
Externí odkaz:
http://arxiv.org/abs/1707.02618
Publikováno v:
Phys. Rev. E 95, 023203 (2017)
The Weibel instability driven by two symmetric counter-streaming relativistic electron plasmas, also referred to as current-filamentation instability, is studied in a constant and uniform external magnetic field aligned with the plasma flows. Both th
Externí odkaz:
http://arxiv.org/abs/1612.03934
Autor:
Bernard, D., Moulin, F., Amiranoff, F., Braun, A., Chambaret, J. P., Darpentigny, G., Grillon, G., Ranc, S., Perrone, F.
Publikováno v:
Eur.Phys.J.D10:141,2000
We have searched for stimulated photon scattering in vacuum at a center of mass photon energy of 0.8 eV. The QED contribution to this process is equivalent to four wave mixing in vacuum. No evidence for gamma-gamma scattering was observed. The corres
Externí odkaz:
http://arxiv.org/abs/1007.0104
Autor:
Amiranoff, F., Bernard, D., Cros, B., Jacquet, F., Matthieussent, G., Marques, J. R., Mine, P., Mora, P., Modena, A., Morillo, J., Moulin, F., Najmudin, Z., Specka, A. E., Stenz, C.
Publikováno v:
IEEE Transactions on Plasma science 14, 296-300 (1996)
We present a summary of the beatwave particle acceleration program developed at Ecole Polytechnique. In dedicated experiments, plasma formation, plasma wave generation and saturation, and particle acceleration were successively studied and understood
Externí odkaz:
http://arxiv.org/abs/0709.1844