Nuclear kinetic energy spectra of D_2^+ in intense laser field: Beyond Born Oppenheimer approximation

Abstract

Simultaneously, the vibrational nuclear dynamics and full dimensional electronic dynamics of the deuterium molecular ion exposed to the linear polarized intense laser field are studied. The time dependent Schrödinger equation of the aligned D2+ with the electric laser field is solved for the simulation of the complicated dissociative ionization processes and compared with the recent related experimental results. In this work, the R-dependent ionization rate and the enhanced ionization phenomenon beyond the Born-Oppenheimer approximation (BOA) are introduced and calculated. The substructure of the nuclear kinetic energy release spectra are revealed as the Coulomb explosion energy spectra and dissociation energy spectra in the dissociation-ionization channel. The significant and trace of these distinct sub-spectra in the total spectra comparatively are displayed and discussed.

17 pages, 4 figures

References in corpus (3)

• Dynamic tunnelling ionization of $H_2^{+}$ in intense fields
• H2 Double Ionization with Few-Cycle Laser Pulses
• Detailed instantaneous ionization rate of H${}_2^{+}$ in intense laser field

Cited by in corpus (7)

• Effect of nuclear motion on high-order harmonic generation of H${}_2^{+}$ in intense ultrashort laser pulses
• Understanding molecular harmonic emission at relatively long intense laser pulses: Beyond the Born-Oppenheimer approximation
• Complicated high-order harmonic generation due to the falling edge of a trapezoidal laser pulse
• Identifying spatially asymmetric high-order harmonic emission during the falling edge of an intense laser pulse
• Nuclear classical dynamics of H${}_2$ in intense laser field
• Precise Calculation of Single and Double Ionization of Hydrogen Molecule in Intense Laser Pulses
• Pathway of D${}^{+}$ in Sequential Double Ionization of D${}_2$ in an Intense Laser Pulse