Fig. 1. Harmonic emission spectra of long-range (a) and short-range (b) atoms in the CRTCCP laser pulse.

Fig. 2. The variation of harmonic spectra with the peak amplitude of the laser electric field calculated from the long-range model atom (a) and the short-range model atom (b).

Fig. 3. The variation of harmonic spectra with the peak amplitude of the laser electric field calculated from the SFA.

Fig. 4. (a) Wavelet analysis of the time-dependent dipole moment of the short-range model atom with laser intensity E₀ = 0.1015. (b) The variation of phase difference of two trajectories with harmonic orders for the harmonic from the long-range model atom (red circle) and short-range model atom (black square).

Fig. 5. Variation of the harmonic yield with R for calculations of the long-range model atom (black line), the short-range model atom (red line) and SFA (blue line), the laser intensity E₀ ranges from 0.0875 to 0.11.

Fig. 6. The variation of the absolute value of ellipticity with the peak amplitude of the laser pulse calculated from the long-range (a) and short-range (b) model atoms.