Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Effect of laser-focusing conditions on propagation and monoenergetic electron production in laser-wakefield accelerators
AU - Thomas, A. G. R.
AU - Najmudin, Z.
AU - Mangles, S. P. D.
AU - Murphy, C. D.
AU - Dangor, A. E.
AU - Kamperidis, C.
AU - Lancaster, K. L.
AU - Mori, W. B.
AU - Norreys, P. A.
AU - Rozmus, W.
AU - Krushelnick, K.
PY - 2007/3/2
Y1 - 2007/3/2
N2 - The effect of laser-focusing conditions on the evolution of relativistic plasma waves in laser-wakefield accelerators is studied both experimentally and with particle-in-cell simulations. For short focal-length (w(0)lambda(p)), a single optical filament can capture the majority of the laser energy and self-guide over distances comparable to the dephasing length, even for these short pulses (c tau approximate to lambda(p)). This allows the wakefield to evolve to the correct shape for the production of the monoenergetic electron bunches, as measured in the experiment.
AB - The effect of laser-focusing conditions on the evolution of relativistic plasma waves in laser-wakefield accelerators is studied both experimentally and with particle-in-cell simulations. For short focal-length (w(0)lambda(p)), a single optical filament can capture the majority of the laser energy and self-guide over distances comparable to the dephasing length, even for these short pulses (c tau approximate to lambda(p)). This allows the wakefield to evolve to the correct shape for the production of the monoenergetic electron bunches, as measured in the experiment.
KW - PULSE DURATION
KW - PLASMA
KW - BEAMS
U2 - 10.1103/PhysRevLett.98.095004
DO - 10.1103/PhysRevLett.98.095004
M3 - Journal article
VL - 98
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 9
M1 - 095004
ER -