Angular momentum evolution in laser-plasma accelerators

Abstract

The transverse properties of an electron beam are characterized by two quantities, the emittance which indicates the electron beam extend in the phase space and the angular momentum which allows for non-planar electron trajectories. Whereas the emittance of electron beams produced in laser- plasma accelerator has been measured in several experiments, their angular momentum has been scarcely studied. It was demonstrated that electrons in laser-plasma accelerator carry some angular momentum, but its origin was not established. Here we identify one source of angular momentum growth and we present experimental results showing that the angular momentum content evolves during the acceleration.

References in corpus (3)

• Femtosecond x rays from laser-plasma accelerators
• Controlling the spectrum of x-rays generated in a laser-plasma accelerator by tailoring the laser wavefront
• Controlled Betatron X-Ray Radiation from Tunable Optically Injected Electrons

Cited by in corpus (9)

• Demonstration of relativistic electron beam focusing by a laser-plasma lens
• Generation of GeV positron and γ-photon beams with controllable angular momentum by intense lasers
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• Quasilinear theory of Brillouin resonances in rotating magnetized plasmas
• Optical Shaping of Plasma Cavity for Controlled Laser Wakefield Acceleration
• Geometric phase in Brillouin flows
• Plasma rotation driven by lasers with zero angular momentum
• Faraday-Fresnel rotation and splitting of orbital angular momentum carrying waves in a rotating plasma
• Optical Control of transverse Motion of Ionization injected Electrons in Laser Plasma Wakefield