Controlled generation of ultra-short electron bunches using density modulation

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Abstract

Stimulated electron self-injection in the laser wakefield accelerator (LWFA) using density downramps is well known and regularly used to produce high energy electron bunches. The use of density gradients not only to stimulate injection but also control the properties of the injected electron bunch was recently presented by Tooley et al. [Phys. Rev. Lett. 119, 044801 (2017)], in which the authors put forward a model for controlling the velocity of the back of the bubble and compared to 2D and 3D particle-in-cell (PIC) data. This model is discussed and used to identify suitable LWFA parameters for ultra-short injection and repeated injection of multiple bunches. Quasi-3D PIC data is used to demonstrate injection of multiple bunches well separated in energy.
Original languageEnglish
Title of host publicationRelativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings
EditorsDino A. Jaroszynski, MinSup Hur
Place of PublicationBellingham, WA
Number of pages6
Volume11036
ISBN (Electronic)9781510627383
DOIs
Publication statusPublished - 24 Apr 2019
EventRelativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources - Prague, Czech Republic
Duration: 3 Apr 20194 Apr 2019
Conference number: 11036
https://spie.org/EOO/conferencedetails/relativistic-plasma-waves-particle-beams?SSO=1

Conference

ConferenceRelativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources
CountryCzech Republic
CityPrague
Period3/04/194/04/19
Internet address

Keywords

  • laser wakefield accelerator
  • LWFA
  • self-injection
  • ultra-short electron bunches
  • attosecond bunches

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