ELFT HÍRADÓ

[Janos Asboth <asboth.janos AT wigner.mta.hu>]

Kedves Munkatársak!

Ma, 13:00-kor, a karácsonyi összejövetel előtt, a Wigner SZFI
Tanácstermében lesz a második Wigner Kollokvium.


VEISZ LÁSZLÓ
Laboratory for Attosecond Physics, Max-Planck-Institut für Quantenoptik,
Garching, Germany

Laser-driven electron acceleration

Electron accelerators have significantly formed the frontiers of science in
the last decades. However, conventional radio-frequency accelerator
technology has reached its limits in size, costs and accelerating
gradients. Various alternative laser-based techniques are rising, which
provide solutions for the previous limitations. One of the most promising
is laser wakefield acceleration (LWFA), in which a short laser pulse drives
an electron plasma wave with thousand times larger longitudinal fields than
usual accelerating gradients and this produces short electron bunches. LWFA
has been realized with sub-10-fs laser pulses. Furthermore, a very
efficient electron injection method utilizing shock-fronts in supersonic
gas jets has been implemented and real-time observation of this LWFA
process has been demonstrated that proofs the few femtosecond duration of
the electron pulses. Sub-5-fs relativistic laser pulses have been used to
generate weakly relativistic, few-MeV electron energy. This source opens up
a novel field of applications, electron diffraction in the femto- or
attosecond domain.




Minden érdeklődőt szívesen várunk.
Asbóth János 
(szfi-seminar AT wigner.mta.hu)