Publications

1996

• Stark broadening of satellite lines in silicon plasmas driven by femtosecond laser pulses
  
  • Mancini R. C.
  • Schlyaptseva A. S.
  • Audebert Patrick
  • Geindre Jean-Paul
  • Bastiani S.
  • Gauthier J.-C.
  • Grillon Georges
  • Mysyrowicz André
  • Antonetti André
  Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], American Physical Society, 1996, 54 (4), pp.4147-4154. Silicon targets irradiated at large incidence angle (60°) with ultrashort (120 fs) P-polarized laser pulses at high intensities (≊1016 W cm-2) display significantly broadened K-shell x-ray line emission. To analyze the spectra we have calculated Stark-broadened line profiles for the Heα resonance line and its satellite transitions in Li-, Be-, and B-like ions with spectator electrons in theL and M shells. Results indicate that the emission is characteristic of near solid densities and that there is an unusually high contribution from high-order satellite transitions; this could be due to a combination of high-density and transient effects. (10.1103/PhysRevE.54.4147)
  DOI : 10.1103/PhysRevE.54.4147
• Simultaneous Measurements of Hard X Rays and Second-Harmonic Emission in fs Laser-Target Interactions
  
  • Gizzi L. A.
  • Giulietti Danilo
  • Giulietti Antonio
  • Audebert Patrick
  • Bastiani S.
  • Geindre Jean-Paul
  • Mysyrowicz André
  Physical Review Letters, American Physical Society, 1996, 76 (13), pp.2278-2281. The interaction of 150 fs laser pulses with very thin plastic targets at an intensity of 5×1017 W/cm2 was investigated experimentally. Second-harmonic (SH) radiation was found to be emitted only in the specular direction. Both SH intensity and hard x-ray yield were found to be strongly dependent upon the laser polarization. The main features of SH emission are in agreement with a theoretical model which assumes resonance absorption as the source mechanism of electron plasma waves. Measurements suggest that, in conditions of maximum energy absorption, wave breaking of resonantly excited electron plasma waves takes place. (10.1103/PhysRevLett.76.2278)
  DOI : 10.1103/PhysRevLett.76.2278
• A summary of the beatwave experiments at Ecole Polytechnique
  
  • Amiranoff François
  • Bernard D.
  • Cros B.
  • Jacquet F.
  • Matthieussent G.
  • Marques J.R.
  • Mine P.
  • Mora P.
  • Modena A.
  • Morillo Joseph
  • Moulin F.
  • Najmudin Z.
  • Specka A.E.
  • Stenz C.
  IEEE Transactions on Plasma Science, Institute of Electrical and Electronics Engineers, 1996, 14, pp.296-300. 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 in detail. A maximum energy gain of 1.3 MeV was obtained, which is compatible with an accelerating gradient of 0.7 GV/m.
• Beam test results of a Shashlik calorimeter in a high magnetic field
  
  • Aspell P.
  • Bates S.
  • Bloch P.
  • Grabit R.
  • Jarron P.
  • Kloukinas K.
  • Lemeilleur F.
  • Loos R.
  • Marchioro A.
  • Rosso E.
  • Badier J.
  • Bruel Pascal
  • Busata A.
  • Busson P.
  • Charlot C.
  • Dorchies F.
  • Dobrzynski L.
  • Ferreira O.
  • Gregory C.
  • Karar A.
  • Manigot P.
  • Tanaka R.
  • Vanel J. C.
  • Bityukov S.
  • Obraztsov V.
  • Ostankov A.
  • Protopopov Y.
  • Rykalin V.
  • Spiridonov P.
  • Soushkov V.
  • Vasilchenko V.
  • Clayton E.
  • Miller D.
  • Seez C.
  • Virdee T. S.
  • Djilkibaev R.
  • Gninenko S.
  • Guschin E.
  • Musienko Y.
  • Popov V.
  • Skasyrskaya A.
  • Semenyuk I.
  • Cheremukhin I.
  • Egorov A.
  • Golutvin I.
  • Kozlov Y.
  • Moissenz P.
  • Sergueev S.
  • Sidorov A.
  • Zubarev E.
  • Zamiatin N.
  • Bordalo P.
  • Ramos S.
  • Varela J.
  • Cockerill D. J. A.
  • Connolly J.
  • Denton L.
  • Godinovic N.
  • Puljak I.
  • Soric I.
  • Chendvankar S. R.
  • Gupta S. K.
  • Ganguli S. N.
  • Gurtu A.
  • Maity M.
  • Majumder G.
  • Mazumdar K.
  • Moulik T.
  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 1996, 376 (3), pp.361-367. no abstract
• Laser particle acceleration: Beat-wave and wakefield experiments
  
  • Amiranoff François
  • Antonetti A.
  • Audebert P.
  • Bernard D.
  • Cros B.
  • Dorchies F.
  • Gauthier J. C.
  • Geindre J. P.
  • Grillon G.
  • Jacquet F.
  • Matthieussent G.
  • Marques J. R.
  • Mine P.
  • Mora P.
  • Modena A.
  • Morillo Joseph
  • Moulin F.
  • Najmudin Z.
  • Specka A. E.
  • Stenz C.
  Plasma Physics and Controlled Fusion, IOP Publishing, 1996, 38 (12A), pp.A295-A300. no abstract
• Stimulated Raman backscattering instability in short pulse laser interaction with helium gas
  
  • Malka Victor
  • de Wispelaere E.
  • Marquès J. R.
  • Bonadio R.
  • Amiranoff François
  • Blasco F.
  • Stenz C.
  • Mounaix Ph.
  • Grillon G.
  • Nibbering E.
  Physics of Plasmas, American Institute of Physics, 1996, 3 (5), pp.1682. (10.1063/1.871688)
  DOI : 10.1063/1.871688
• Observation of Raman forward scattering and electron acceleration in the relativistic regime
  
  • Modena A.
  • Najmudin Z.
  • Dangor A.E.
  • Clayton C.E.
  • Marsh K.A.
  • Joshi C.
  • Malka Victor
  • Darrow C.B.
  • Danson C.
  IEEE Transactions on Plasma Science, Institute of Electrical and Electronics Engineers, 1996, 24 (2), pp.289 - 295. Raman forward scattering (RFS) is observed in the interaction of a high intensity (>1018 W/cm2) short pulse (<1 ps) laser with an underdense plasma (ne~1019 cm -3). Electrons are trapped and accelerated up to 44 MeV by the high-amplitude plasma wave produced by RFS. The laser spectrum is strongly modulated by the interaction, showing sidebands at the plasma frequency. Furthermore, as the quiver velocity of the electrons in the high electric field of the laser beam becomes relativistic, various effects are observed which can be attributed to the variation of electron mass with laser intensity (10.1109/27.509992)
  DOI : 10.1109/27.509992