Observation of Laser Power Amplification in a Self-Injecting Laser Wakefield Accelerator

M. J.V. Streeter, S. Kneip, M. S. Bloom, R. A. Bendoyro, O. Chekhlov, A. E. Dangor, A. Döpp, C. J. Hooker, J. Holloway, J. Jiang, N. C. Lopes, H. Nakamura, P. A. Norreys, C. A.J. Palmer, P. P. Rajeev, J. Schreiber, D. R. Symes, M. Wing, S. P.D. Mangles, Z. Najmudin

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


We report on the depletion and power amplification of the driving laser pulse in a strongly driven laser wakefield accelerator. Simultaneous measurement of the transmitted pulse energy and temporal shape indicate an increase in peak power from 187±11 TW to a maximum of 318±12 TW after 13 mm of propagation in a plasma density of 0.9×1018 cm-3. The power amplification is correlated with the injection and acceleration of electrons in the nonlinear wakefield. This process is modeled by including a localized redshift and subsequent group delay dispersion at the laser pulse front.

Original languageEnglish
Article number254801
JournalPhysical Review Letters
Issue number25
Publication statusPublished - 19 Jun 2018
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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