
April 24, 2014 17:8 PSP Book - 9in x 6in 02-Rashid-A.-Ganeev-c02
48 Theoretical Basics of Plasma Harmonics
Figure 2.7 Calculated results for the HHG driven by (a) a long (40 fs)
pulse with CEP φ = π /4 and (b–d) a few-cycle pulses with CEPs of (b)
φ = 0, (c) φ = π /4, and (d) φ = π /2. The top panels show the HHG
temporal intensity profile obtained as the square of the time-dependent
dipole acceleration after high pass filtering above 32.7 eV. The middle
panels show the time-frequency diagrams. The curves in the bottom panels
show the time dependence of the electric field of the driving laser pulse.
Reproduced from Ref. 76 with permission from Optical