Open AccessElectron acceleration by a tightly focused femtosecond laser beam in vacuum
Author(s) -
Feng He,
Wei Yu,
Peixiang Lu,
Xingqiu Yuan,
Jingru Liu
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.165
Subject(s) - electron , acceleration , laser , physics , femtosecond , atomic physics , cathode ray , ponderomotive force , focus (optics) , range (aeronautics) , pulse (music) , optics , materials science , nuclear physics , classical mechanics , detector , composite material
Ponderomotive-force driven acceleration of an electron at the focus of a high-intensity short-pulse laser is considered using a model that the electrons accelerated are near the focus but decelerated far away the focus. For intensities above 1019Wμm2/cm2, the electron's energy gain in the range of MeV can be realized when the electron leaves the laser pulse. Final energy gain of the electron as a function of its initial position has also been discussed. We find that an electron initially near the focus can be accelerated well.