Ultrahigh acceleration of plasma blocks by nonlinear forces for side-on laser ignition of solid density fusion fuel

Heinrich Hora, George H. Miley, Xiantu He, Wudi Zheng, Paraskevas Lalousis, Istvan Földes, Sandor Szatmari, Stavros Moustaizis, Reynaldo Castillo

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Abstract

A fundamental difference of very high intensity laser interaction with plasmas from solid targets appears with lasing at picosecond (ps) pulse durations in contrast to pulses of nanoseconds (ns). This can be seen from the more than 10,000 times higher acceleration with ps pulse durations than with thermal pressure determined interaction. A ps pulse duration produces instantly acting high-efficiency nonlinear (ponderomotive) electrodynamic force dominated acceleration in contrast to heating with longer pulses. The ps pulses accelerate high-density plasma blocks. This can be used by a new scheme of side-on driven laser fusion with generating a flame ignition in uncompressed fusion fuel of solid density resulting in a reaction velocity of more than 2000 km/s for DT.

Original languageEnglish
Pages (from-to)420-424
Number of pages5
JournalPlasma Science and Technology
Volume15
Issue number5
DOIs
Publication statusPublished - May 1 2013

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Keywords

  • fast ignition
  • laser driven fusion
  • nonlinear (ponderomotive) force
  • ultrahigh acceleration

ASJC Scopus subject areas

  • Condensed Matter Physics

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