Experimental studies of fast electron generation in laser-produced plasmas at 1.06, 0.53 and 0.26 μm laser wavelength

摘要

We present experimental results on fast electron generation in laser-produced plasmas at 1.06, 0.53 and 0.26 μm at laser intensities between 10 14 and 2 x 1015 W/cm2. Hard X-ray and ion-collector data are in good agreement and indicate a hot temperature given by T H = 4 x 10-7 (Iλ2/W.μm2.cm -2)0.5 keV.