Wavelength dependence of high-harmonic yield from aligned molecules: roles of structure and electron dynamics

摘要: We study high-order harmonic generation (HHG) from aligned molecules by varying the laser wavelength 400 to 2300 nm. Our simulations show that dependence of integrated HHG yield is influenced significantly molecular orientation. analyses reveal electronic dynamics and interference effect relating structure orientation play a dominating role in wavelength-orientation-dependent yield. The scaling associated with long short electron trajectories also addressed. find contribution trajectory scales vary differently for wavelengths, which provides important suggestions experimental law.