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Propagation of radius‐tailored laser pulses over extended distances in a uniform plasma
Ist Teil von
Physics of plasmas, 1994-05, Vol.1 (5), p.1738-1743
Ort / Verlag
United States
Erscheinungsjahr
1994
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
A Maxwell‐fluid model is described, which allows simulation of laser pulses over extended distances (multiple diffraction lengths) in an underdense plasma. This model is used to simulate radius‐tailored laser pulses, which can propagate over such distances with minimal distortion in a uniform plasma. Theoretical model equations governing the choice of radius tailoring are also given. A radius‐tailored pulse has constant power approximately equal to the critical power for relativistic guiding over the length of the pulse and a spot size at focus that varies over the length of the pulse. A laser pulse configuration of this type can be constructed from a series of ultrashort Gaussian pulses.