Revisiting the ion-channel laser for the production of coherent betatron radiation

POSTER

Abstract

The Ion-Channel Laser (ICL) [1] is a possible alternative approach to Free Electron Lasers to produce coherent and high intensity light at different wavelengths taking advantage of an ion channel, which can be created in a laser or plasma wakefield accelerator. After comparing the ICL and conventional FEL, we show with PIC simulations that, under certain conditions, the betatron radiation emitted by the electrons oscillating in the ion channel can bunch the electron beam at the radiation wavelength, and coherent radiation is generated and amplified. The power of the coherent radiation increases exponentially until a saturation level. This is possible due to boosted frame simulations in the electron bunch frame, which are three orders of magnitude faster than simulations in the lab frame, and can avoid numerical instabilities associated with numerical Cerenkov radiation. [1] D. H. Whittum et al., Ion-Channel Laser, Phys. Rev. Lett. 64, 2511 (1990)

Authors

  • Xavier Davoine

    GoLP/IPFN-LA, Instituto Superior T\'ecnico, Lisbon, Portugal

  • J.L. Martins

    GoLP/IPFN-LA, Instituto Superior T\'ecnico, Lisbon, Portugal, Instituto Superior T\'ecnico, GoLP/Instituto de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Lisbon, Portugal, GoLP/Instituto de Plasmas e Fusao Nuclear - Laboratorio Associado, Instituto Superior Tecnico, Lisboa, Portugal, IST Lisbon, Portugal

  • Frederico Fiuza

    GoLP/IPFN-LA, Instituto Superior T\'ecnico, Lisbon, Portugal, GoLP/IPFN - LA Instituto Superior Tecnico, GoLP/IPFN-LA, Instituto Superior Tecnico

  • R. Fonseca

    DCTI, ISCTE - Lisbon University Institute, Portugal, 1 DCTI, ISCTE - Lisbon University Institute, Portugal, 2 - IPFN, Instituto Superior Tecnico, Lisbon, Portugal, IPFN/IST Portugal, GoLP/IPFN - LA Instituto Superior Tecnico, GoLP/Instituto de Plasmas e Fusao Nuclear - Laboratorio Associado, Instituto Superior Tecnico, Lisboa, Portugal, GoLP/Instituto de Plasmas e Fus\~ao Nuclear-Laborat\'orio Associado, Instituto Superior T\'ecnico, Portugal, GoLP/IPFN - Instituto Superior Tecnico, Lisbon, Portugal, GoLP/IPFN-LA, Instituto Superior Tecnico, DCTI,ISCTE-Lisbon University Institute, IST Lisbon, Portugal

  • Warren Mori

    University of California, Los Angeles, University of California, Los Angeles, California, UCLA, Department of Physics \& Astronomy, University of California, Los Angeles, University of California, Los Angeles USA

  • L.O. Silva

    GoLP/IPFN-LA, Instituto Superior T\'ecnico, Lisbon, Portugal, IPFN, Instituto Superior Tecnico, Lisbon, Portugal, Instituto Superior T\'ecnico, GoLP/IPFN - LA Instituto Superior Tecnico, GoLP/Instituto de Plasmas e Fusao Nuclear - Laboratorio Associado, Instituto Superior Tecnico, Lisboa, Portugal, GoLP Instituto Superior Tecnico, IST, Lisbon, Portugal, GoLP/Inst. de Plasmas e Fus\~ao Nuclear, Instituto Superior T\'ecnico, Lisbon, Portugal, GoLP/Instituto de Plasmas e Fus\~ao Nuclear-Laborat\'orio Associado, Instituto Superior T\'ecnico, Portugal, GoLP/IPFN - Instituto Superior Tecnico, Lisbon, Portugal, GoLP/IPFN-LA, Instituto Superior Tecnico, GoLP/Instituto de Plasmas e Fusao Nuclear-Laboratorio Associado, Instituto Superior Tecnico, Portugal, IST Lisbon, Portugal