Abstract
Ionization channels of the molecular ion H+2 for various initial vibrational states in intense laser field (80 fs, 800 nm, I = 6.8 × 1013 W/cm2) are theoretically investigated by numerically solving the time-dependent Schrödinger equation. The results confirm that the channels largely depend on the selection of initial vibrational states by analyzing the variations of peak locations in the nuclear initial kinetic-energy-release spectra. Furthermore, the selection of the ionization channels is sensitive to the wavelength of the laser pulse. In addition, time-dependent competition between direct multi-photon ionization and charge-resonance-enhanced ionization are is discussed.
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