Effect of temporal profile of the laser pulse interacting with solid surface on the generation of high harmonics and attosecond pulse trains
The effect of temporal profile of an ultra-intense, ultrashort few-cycle laser pulse incident normally on a solid surface on harmonics generation (HHG) and attosecond pulse trains has numerically been studied. The results of transformation of initially narrow spectrum of the laser pulse into a broad harmonic spectrum are obtained. The reflected signal has the form of a train of ultrashort pulses of duration ~100 attoseconds for the case of a Ti:sapphire laser. The effect of collisions on electron dynamics has been taken into account.
laser plasma-mirror interaction; high harmonic generation; attosecond pulse generation
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