Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The generation of mono-energetic electron beams from ultrashort pulse laser–plasma interactions
AU - Mangles, Stuart P. D.
AU - Krushelnick, Karl
AU - Najmudin, Zulfikar
AU - Wei, M. S.
AU - Walton, B.
AU - Gopal, Abhijit
AU - Dangor, Aboobaker E.
AU - Fritzler, S.
AU - Murphy, C. D.
AU - Thomas, Alexander George Roy
AU - Mori, Warren B.
AU - Gallacher, J. G.
AU - Jaroszynski, Dino
AU - Norreys, Peter A.
AU - Viskup, R.
PY - 2006/3/15
Y1 - 2006/3/15
N2 - 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 1020 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.
AB - 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 1020 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.
KW - lasers
KW - plasmas
KW - particle acceleration
U2 - 10.1098/rsta.2005.1730
DO - 10.1098/rsta.2005.1730
M3 - Journal article
VL - 364
SP - 663
EP - 677
JO - Philosophical Transactions of the Royal Society of London A
JF - Philosophical Transactions of the Royal Society of London A
SN - 0264-3820
ER -