Pondermotive acceleration of ions by relativistically self-focused high-intensity short pulse laser

A. Maksimchuk, S. Gu, K. Flippo, S. Y. Chen, D. Umstadter, G. S. Sarkisov, V. Yu Bychenkov, V. N. Novikov, V. T. Tichonchuk

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

We report on the observation of high energy ions with energies up to 1 MeV accelerated pondermotively by a relativistically self-focused intense 5 TW, 400 fs laser pulse in a supersonic He gas jet on the distance of a laser spot size. Probing interferometry was used to observe on-axis electron-ion cavitation followed by the plasma expansion with a high radial velocity of approximately 3.8·108 cm/s. Using the nuclear track detector CR-39, we confirmed that the ions are preferentially accelerated in the radial direction and the total energy in high energy ions is about 1% of the laser energy. Developed kinetic modeling provides a reasonable description of a plasma channel formation and ion acceleration.

Original languageEnglish (US)
Pages3716-3718
Number of pages3
StatePublished - 1999
EventThe 18th Biennial Particle Accelerator Conference - New York, NY, USA
Duration: Mar 27 1999Apr 2 1999

Other

OtherThe 18th Biennial Particle Accelerator Conference
CityNew York, NY, USA
Period3/27/994/2/99

ASJC Scopus subject areas

  • Engineering(all)

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