Electron transition dynamics in high-order harmonic generation process from H2+

The high-order harmonic generation from H-2(+) has been theoretically investigated by numerically solving the two-dimensional time-dependent Schrodinger equation. A sharp minimum can be seen in the harmonic spectrum for larger internuclear distance. Moreover, the electron transition process between the ground state and the first excited state competes with the ionization process at larger internuclear distance, which is the main reason of the spectral minimum. By superposing the static electric field and adjusting the orientation angle theta, it is further proved that the electron transition frequency.

Automated summary

The high-order harmonic generation from H-2(+) has been investigated using numerical solutions of the two-dimensional time-dependent Schrodinger equation. A pronounced minimum appears in the harmonic spectrum for larger internuclear distance. The competition between electron transition from the ground state to the first excited state and the ionization process at larger internuclear distance is the main cause of the spectral minimum. The electron transition frequency is further demonstrated by superimposing a static electric field and adjusting the orientation angle theta.