Self-trapping and acceleration of ions in laser-driven relativistically transparent plasma
arXiv:1803.06358 · doi:10.1063/1.5051317
Abstract
Self-trapping and acceleration of ions in laser-driven relativistically transparent plasma are investigated with the help of particle-in-cell simulations. A theoretical model based on ion wave breaking is established in describing ion evolution and ion trapping. The threshold for ion trapping is identified. Near the threshold ion trapping is self-regulating and stops when the number of trapped ions is large enough. The model is applied to ion trapping in three-dimensional geometry. Longitudinal distributions of ions and the electric field near the wave breaking point are derived analytically in terms of power-law scalings. The areal density of trapped charge is obtained as a function of the strength of ion wave breaking, which scales with target density for fixed laser intensity. The results of the model are confirmed by the simulations.
References in corpus (10)
- Ion acceleration by superintense laser-plasma interaction
- Radiation Pressure Dominate Regime of Relativistic Ion Acceleration
- Radiation Pressure Acceleration of Thin Foils with Circularly Polarized Laser Pulses
- Laser acceleration of ion bunches at the front surface of overdense plasmas
- "Light Sail" Acceleration Revisited
- Scalings for ultra-relativistic laser plasmas and monoenergetic electrons
- Hole boring in a DT pellet and fast ion ignition with ultra-intense laser pulses
- Novel path towards compact laser ion accelerators for hadron therapy: Tenfold energy increase in laser-driven multi-MeV ion generation using a gas target mixed with submicron clusters
- Synchronized ion acceleration by ultraintense slow light
- Relativistically Induced Transparency Acceleration (RITA) of Protons and Light-ions with Ultrashort Laser Interaction with Heavy-ion Plasma Density Gradient