The resonant multi-pulse ionization injection

Year: 2017

Authors: Tomassini P., De Nicola S., Labate L., Londrillo P., Fedele R., Terzani D., Gizzi L.A.

Autors Affiliation: INO CNR, Intense Laser Irradiat Lab, I-56124 Pisa, Italy; Univ Napoli Federico II, Dip Fis, I-80126 Naples, Italy; CNR SPIN, I-80126 Naples, Italy; INFN, Sect Pisa, I-56100 Pisa, Italy; INAF, I-40129 Bologna, Italy; INFN, Sect Napoli, I-80126 Naples, Italy.

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 x mrad and 0.65% energy spread can be obtained with a single present-day 100TW-class Ti: Sa laser system. Published by AIP Publishing.

Journal/Review: PHYSICS OF PLASMAS

Volume: 24 (10)      Pages from: 103120-1  to: 103120-9

More Information: College of Natural Resources, University of California Berkeley, CNR. 653782–EuPRAXIA. – The research leading to these results has received funding from the European Union’s Horizon 2020 Research and Innovation Program under Grant Agreement No. 653782–EuPRAXIA. The authors also acknowledge financial support from the ELI-ITALY Network funded by CNR. They would like to thank CNAF-INFN for access to computational resources. Finally, the authors acknowledge support from Manuel Kirchen from Hamburg University for his help about the FB-PIC code.
KeyWords: plasma; laser; electron transport; ionization;
DOI: 10.1063/1.5000696

Citations: 29
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