Year: 2017
Type: article
Abstract: The production of high-quality electron bunches in Laser Wake Field Acceleration relies on the possibility to inject ultra-low emittance bunches in the plasma wave. In this paper, we present a new bunch injection scheme in which electrons extracted by ionization are trapped by a large-amplitude plasma wave driven by a train of resonant ultrashort pulses. In the Resonant Multi-Pulse Ionization injection scheme, the main portion of a single ultrashort (e.g., Ti:Sa) laser system pulse is temporally shaped as a sequence of resonant sub-pulses, while a minor portion acts as an ionizing pulse. Simulations show that high-quality electron bunches with normalized emittance as low as 0.08 mm × mrad and 0.65% energy spread can be obtained with a single present-day 100TW-class Ti:Sa laser system.
Source: Physics of Plasmas
DOI: 10.1063/1.5000696
Authors: Paolo Tomassini, Sergio De Nicola, Luca Labate, Pasquale Londrillo, Renato Fedele, Davide Terzani, Leonida A. Gizzi
Institutions: Superconducting and other Innovative Materials and Devices Institute, National Research Council, University of Naples Federico II, Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, National Institute for Astrophysics, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2748549743