5 research outputs found
First observation of quasi-monoenergetic electron bunches driven out of ultra-thin diamond-like carbon (DLC) foils
Electrons have been accelerated from ultra-thin diamond-like carbon
(DLC) foils by an ultrahigh-intensity laser pulse.
A distinct quasi-monoenergetic electron spectrum peaked at 30Â MeV
is observed at a target thickness as thin as 5Â nm which is in contrast to the observations of wide spectral distributions
for thicker targets.
At the same time, a substantial drop in laser-accelerated ion
energies is found. The experimental findings give first indication that
relativistic electron sheets can be generated from ultra-thin foils which in
future may be used to generate brilliant X-ray beams by the coherent
reflection of a second laser