The nuclear motion can modify the spectra of high-order harmonic generation (HHG) in non-Born-Oppenheimer approximations (NBOA). We numerically solve the time-dependent Schrödinger equation (TDSE) of 2D H2+ with an additional nuclear degree of freedom. Redshifts in HHG are observed, which is strongly dependent on the initial vibration state and the orientation of the molecule.

© 2016 Optical Society of America

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