Observation and characterization of laser-driven phase space electron holes

G. Sarri, M. E. Dieckmann, C. R.D. Brown, C. A. Cecchetti, D. J. Hoarty, S. F. James, R. Jung, I. Kourakis, H. Schamel, O. Willi, M. Borghesi

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The direct observation and full characterization of a phase space electron hole (EH) generated during laser-matter interaction is presented. This structure, propagating in a tenuous, nonmagnetized plasma, has been detected via proton radiography during the irradiation with a ns laser pulse (I λ2 ≈ 1014 W/ cm2) of a gold hohlraum. This technique has allowed the simultaneous detection of propagation velocity, potential, and electron density spatial profile across the EH with fine spatial and temporal resolution allowing a detailed comparison with theoretical and numerical models.

Original languageBritish English
Article number010701
JournalPhysics of Plasmas
Issue number1
StatePublished - 2010


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