Open AccessThe influence of initial physical parameters on laser pulse in the relativistic laser-plasma system
Author(s) -
XY Jin,
Xiang Qiu,
Zhen Zhu
Publication year - 2006
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.55.5338
Subject(s) - laser , plasma , pulse (music) , materials science , multiphoton intrapulse interference phase scan , atomic physics , femtosecond pulse shaping , optics , ultrafast laser spectroscopy , electron density , physics , ultrashort pulse , quantum mechanics , detector
The present paper studies the influence of the interaction of incident pulsed laser and cold plasmas on the laser pulse in the relativistic laser-plasma system, taking the electron density fluctuation into account. For different initial parameters, the change of the laser-pulse width is analyzed in detail. The self-compression of the laser pulse is particularly discussed. Numerical calculation demonstrates that the pulse self-compression can be effectively achieved with the increase of the intensity and width of the laser pulse and the decrease of background plasma density. For initial laser-pulse parameters a0=0.12 and τ=70 and plasma density n00.3, the ratio of compressed laser pulse to initial one is near to 1/10. And hence optimized theoretical parameters for the self-compression of the laser pulse are given.