Nuclear kinetic energy spectra of D(2)(+) in an intense laser field: Beyond the Born-Oppenheimer approximation

作者：Vafaee Mohsen^*

来源：Physical Review A, 2008, 78(2): 023410.

DOI：10.1103/PhysRevA.78.023410

Simultaneously, the vibrational nuclear dynamics and full dimensional electronic dynamics of a deuterium molecular ion exposed to a linear polarized intense laser field are studied. The time-dependent Schrodinger equation of an aligned D(2)(+) ion with electric laser field is solved for a simulation of complicated dissociative ionization processes and compared with recent related experimental results. We introduce and calculate the R-dependent ionization rate and the enhanced ionization phenomenon beyond the Born-Oppenheimer approximation. The substructure of the nuclear kinetic energy release spectra is revealed as the Coulomb explosion energy spectra and dissociation energy spectra in the dissociation-ionization channel. The significance and trace of these distinct subspectra in the total spectra are comparatively displayed and discussed.

• 出版日期2008-8