Ion acceleration with an ultra-intense two-frequency laser tweezer

Y. Wan, Y. Wan, I. A. Andriyash, C. H. Pai, J. F. Hua, C. J. Zhang, F. Li, Y. P. Wu, Z. Nie, W. B. Mori, W. Lu, V. Malka, V. Malka, C. Joshi

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Ultra-intense lasers produce and manipulate plasmas, allowing to locally generate extremely high static and electromagnetic fields. This study presents a concept of an ultra-intense optical tweezer, where two counter-propagating circularly polarized intense lasers of different frequencies collide on a nano-foil. Interfering inside the foil, lasers produce a beat wave, which traps and moves plasma electrons as a thin sheet with an optically controlled velocity. The electron displacement creates a plasma micro-capacitor with an extremely strong electrostatic field, that efficiently generates narrow-energy-spread ion beams from the multi-species targets, e.g. protons from the hydrocarbon foils. The proposed ion accelerator concept is explored theoretically and demonstrated numerically with the multi-dimensional particle-in-cell simulations.

Original languageEnglish
Article number052002
JournalNew Journal of Physics
Volume22
Issue number5
DOIs
StatePublished - May 2020

Keywords

  • laser ion acceleration
  • plasma instability
  • two frequency laser tweezer

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