Observation of laser power amplification in a self-injecting laser wakefield accelerator
| Autor: | A. E. Dangor, Hirotaka Nakamura, J. Holloway, Zulfikar Najmudin, Stuart Mangles, Charlotte Palmer, Nelson Lopes, Stefan Kneip, P. P. Rajeev, M. J. V. Streeter, C. J. Hooker, Oleg Chekhlov, A. Döpp, J. Jiang, Peter Norreys, Joerg Schreiber, M. S. Bloom, Matthew Wing, R. A. Bendoyro, Dan Symes |
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| Přispěvatelé: | The Royal Society, Engineering & Physical Science Research Council (EPSRC), Science and Technology Facilities Council (STFC) |
| Rok vydání: | 2018 |
| Předmět: |
General Physics
Physics Multidisciplinary General Physics and Astronomy FOS: Physical sciences Electron 01 natural sciences ELECTRON-BEAMS 010305 fluids & plasmas law.invention Acceleration Optics law 0103 physical sciences Group delay dispersion Laser power scaling 010306 general physics Physics Science & Technology 02 Physical Sciences business.industry Plasma acceleration Laser Physics - Plasma Physics Power (physics) Pulse (physics) Plasma Physics (physics.plasm-ph) INTENSE Physical Sciences Physics::Accelerator Physics business |
| Zdroj: | 254801-6 254801-1 Physical Review Letters |
| DOI: | 10.1103/physrevlett.120.254801 |
| Popis: | 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 $187 \pm 11$ TW to a maximum of $318 \pm 12$ TW after 13 mm of propagation in plasma density of $0.9 \times 10^{18}$ cm$^{-3}$. The power amplification is correlated with the injection and acceleration of electrons in the nonlinear wakefield. This process is modeled by including localized redshift and subsequent group delay dispersion at the laser pulse front. 6 pages, 4 figures. Published in PRL |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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