Quasi-monoenergetic Electron Beams from Laser-plasma Acceleration by Ionization-induced Injection in Low- density Pure Nitrogen

2014/10/09 by Mengze Tao, Tao, Mengze, N. Hafz +13
Physics and Astronomy · Engineering · #Laser-Plasma Interactions and Diagnostics #Laser-induced spectroscopy and plasma #Laser-Matter Interactions and Applications

paper · pdf · doi:10.48550/arxiv.1410.2329

Abstract

We report a laser wakefield acceleration of electron beams up to 130 MeV from laser-driven 4-mm long nitrogen gas jet. By using a moderate laser intensity (3.5*10¹8 W.cm^(-2)) and relatively low plasma densities (0.8*10¹8 cm^(-3) to 2.7*10¹8 cm^(-3)) we have achieved a stable regime for laser propagation and consequently a stable generation of electron beams. We experimentally studied the dependence of the drive laser energy on the laser-plasma channel and electron beam parameters. The quality of the generated electron beams is discussed within the framework of the ionization-induced injection mechanism.

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