Plasma photonic spatiotemporal synchronization of relativistic electron and laser beams

P. Scherkl, A. Knetsch, T. Heinemann, A. Sutherland, A. F. Habib, O. S. Karger, D. Ullmann, A. Beaton, G. G. Manahan, Y. Xi, A. Deng, M. D. Litos, B. D. O'Shea, S. Z. Green, C. I. Clarke, G. Andonian, R. Assmann, D. L. Bruhwiler, J. Smith, J. R. CaryM. J. Hogan, V. Yakimenko, J. B. Rosenzweig, B. Hidding

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6 Citations (Scopus)
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Abstract

We present an ultracompact plasma-based method to measure spatial and temporal concurrence of intense electron and laser beams nonintrusively at their interaction point. The electron beam couples with a laser-generated seed plasma in dependence of spatiotemporal overlap, which triggers additional plasma production and manifests as enhanced plasma afterglow. This optical observable is exploited to measure beam concurrence with ∼4 μm spatial and ∼26.7 fs temporal accuracy, supported by auxiliary diagnostics. The afterglow interaction fingerprint is highly sensitive and enables ultraversatile femtosecond-micrometer beam metrology.

Original languageEnglish
Article number052803
Number of pages7
JournalPhysical Review Accelerators and Beams
Volume25
Issue number5
DOIs
Publication statusPublished - 17 May 2022

Funding

This work was performed in part under U.S. DOE Contracts No. DE-SC0009914 (UCLA), No. DE-AC02-76SF00515 (SLAC), and No. DE-SC0009533 (RadiaBeam Technologies). B. H. acknowledges support by the DFG Emmy-Noether program. We acknowledge further support by H2020 EuPRAXIA (Grant No. 653782), United Kingdom EPSRC Grant No. EP/N028694/1, EC Laserlab-Europe (Grant No. 284464), EuCARD-2 (Grant No. 312453), and United Kingdom STFC Grant No. ST/S006214/1, the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (NeXource, ERC Grant Agreement No. 865877), and STFC ST/S006214/1 PWFA-FEL. This work used computational resources of the National Energy Research Scientific Computing Center, which is supported by DOE DE-AC02-05CH11231, of JURECA (Project hhh36), of HLRN, and of Shaheen-II (Project k1191). D. L. B. acknowledges DOE Contract No. DE-SC0013855.

Keywords

  • electron beam
  • laser-generated seed plasma
  • plasma production

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