Near-surface electron acceleration during intense laser-solid interaction in the grazing incidence regime

Abstract

When a relativistically intense p-polarized laser pulse is grazingly incident onto a planar solid-state target, a slightly superluminal field structure is formed near the target surface due to the incident and reflected waves superposition. This field structure can both extract the electrons from the target and accelerate them. It is theoretically shown that the acceleration is possible and stable for a wide range of electron initial conditions. PIC simulations confirm that this mechanism can actually take place for realistic parameters. As a result, the electron bunches with charge of tens of nC and GeV-level energy can be produced using a laser intensity $10^{21}-10^{22}$ W/cm${}^2$. It is also shown that the presence of a preplasma can increase the acceleration rate, which becomes possible because of more efficient electron injection into the accelerating field structure.

References in corpus (7)

• All-optical Compton gamma-ray source
• Scalings for ultra-relativistic laser plasmas and monoenergetic electrons
• Vacuum laser acceleration of relativistic electrons using plasma mirror injectors
• Microengineering laser plasma interactions at relativistic intensities
• Electron acceleration by relativistic surface plasmons in laser-grating interaction
• Gamma-ray generation in ultrahigh-intensity laser-foil interactions
• Incoherent synchrotron emission of laser-driven plasma edge

Cited by in corpus (6)

• Monoenergetic High-energy Ion Source via Femtosecond Laser Incident Parallel to a Microplate
• Surface Plasmon-Driven Electron and Proton Acceleration without Grating Coupling
• Creating localized plasma wave by ionization of doped semiconductors
• Collimated $\gamma$-flash emission along the target surface irradiated by a laser at non-grazing incidence
• Piecewise acceleration of electrons across a periodic solid-state structure irradiated by intense laser pulse
• QED Effects at Grazing Incidence on Solid-State-Targets