Temporal contrast enhancement of femtosecond pulses by a self-diffraction process
نویسندگان
چکیده
A petawatt-class laser system has been developed and laser intensity has recently reached a level as high as 10 22 W/cm 2 owning to the great progress in chirped pulse amplification (CPA) technique. Such ultrahigh intense laser pulses provide powerful tools for laser-matter interaction experiments in the relativistic regime. In these plasma-creating experiments, laser pulses with high temporal contrast are required to prevent the unwanted intense prepulses which generate preplasma before the main pulse arrives at the target. For laser intensity as high as 10 21 W/cm 2 , it is of vital importance to increase the pulse contrast better than 10 9
منابع مشابه
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