The generation of mono-energetic electron beams from ultrashort pulse laser–plasma interactions

S.P.D Mangles 1 K. Krushelnick 1 Z. Najmudin 1 M.S. Wei 1 B. Walton 1 A. Gopal 1 A.E. Dangor 1 S. Fritzler 2 C.D. Murphy 1, 3 A.G.R. Thomas 1 W.B. Mori 4 J. Gallacher 5 D. Jaroszynski 5 P. A. Norreys 3 R. Viskup 5
1 Blackett Laboratory
2 LOA - Laboratoire d'optique appliquée
3 CLF - Central Laser Facility
4 Department of Physics, University of California
5 Department of Physics, University of Strathclyde Glasgow
Abstract : The physics of the interaction of high-intensity laser pulses with underdense plasma depends not only on the interaction intensity but also on the laser pulse length. We show experimentally that as intensities are increased beyond 10^20 W cm^−2 the peak electron acceleration increases beyond that which can be produced from single stage plasma wave acceleration and it is likely that direct laser acceleration mechanisms begin to play an important role. If, alternatively, the pulse length is reduced such that it approaches the plasma period of a relativistic electron plasma wave, high-power interactions at much lower intensity enable the generation of quasi-mono-energetic beams of relativistic electrons.
Keywords : lasers plasmas particle acceleration
Document type :
Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00502293
Contributor : Thuy Le <>
Submitted on : Tuesday, July 13, 2010 - 4:44:25 PM
Last modification on : Wednesday, August 7, 2019 - 12:14:40 PM

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S.P.D Mangles, K. Krushelnick, Z. Najmudin, M.S. Wei, B. Walton, et al.. The generation of mono-energetic electron beams from ultrashort pulse laser–plasma interactions. Philosophical Transactions. Series A, Mathematical, Physical and Engineering Sciences, 2006, 364 (1840), pp.663-677. ⟨10.1098/rsta.2005.1730⟩. ⟨hal-00502293⟩

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