Alignment dependent ultrafast electron-nuclear dynamics in high-order harmonic generation

Abstract

We investigated the high-order harmonic generation (HHG) process of diatomic molecular ion ${\mathrm{H}}_2^{+}$ in non-Born-Oppenheimer approximations. The corresponding three-dimensional time-dependent Schrödinger equation is solved with arbitrary alignment angles. It is found that the nuclear motion can lead to spectral modulation of HHG. Redshifts are unique in molecular HHG which decrease with the increase of alignment angles of the molecules and are sensitive to the initial vibrational states. It can be used to extract the ultrafast electron-nuclear dynamics and image molecular structure.

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• Multiple Ionization Bursts in Laser-Driven Hydrogen Molecular Ion
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Cited by in corpus (1)

• Full-dimensional treatment of short-time vibronic dynamics in molecular high-harmonics generation process in methane