Chirped-Standing-Wave Acceleration of Ions with Intense Lasers
Journal article, 2016

We propose a novel mechanism for ion acceleration based on the guided motion of electrons from a thin layer. The electron motion is locked to the moving nodes of a standing wave formed by a chirped laser pulse reflected from a mirror behind the layer. This provides a stable longitudinal field of charge separation, thus giving rise to chirped-standing-wave acceleration of the residual ions of the layer. We demonstrate, both analytically and numerically, that stable proton beams, with energy spectra peaked around 100 MeV, are feasible for pulse energies at the level of 10 J. Moreover, a scaling law for higher laser intensities and layer densities is presented, indicating stable GeV-level energy gains of dense ion bunches, for soon-to-be-available laser intensities.




Felix Mackenroth

Chalmers, Physics, Theoretical Physics

Arkady Gonoskov

Chalmers, Physics, Theoretical Physics

Mattias Marklund

Chalmers, Physics, Theoretical Physics

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 117 10

Subject Categories

Accelerator Physics and Instrumentation

Atom and Molecular Physics and Optics

Fusion, Plasma and Space Physics





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