Chirped standing wave acceleration of ions with intense lasers
arXiv:1601.03967 · doi:10.1103/PhysRevLett.117.104801
Abstract
We propose a novel mechanism for ion acceleration based on the guided motion of electrons from a thin target. 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 target. This provides a stable longitudinal field of charge separation, thus giving rise to chirped standing wave acceleration (CSWA) of the residual ions of the layer. We demonstrate, both analytically and numerically, that quasi-monoenergetic ion beams with energies of the order 100 MeV are feasible for realistic pulse energies 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.
5 pages, 3 figures
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- Origins of plateau formation in ion energy spectra under target normal sheath acceleration
- Chirp assisted ion acceleration via relativistic self induced transparency
- Prospects for laser-driven ion acceleration through controlled displacement of electrons by standing waves
- Detailed study of quantum path interferences in high harmonic generation driven by chirped laser pulses