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We theoretically investigate the laser wavelength dependence of asymmetricdissociation of H$_2^+$. It is found that the electron localization inmolecular dissociation is significantly manipulated by varying the wavelengthof the driving field. Through creating a strong nuclear vibration in thelaser-molecular interaction, our simulations demonstrate that the few-cyclemid-infrared pulse can effectively localize the electron at one of thedissociating nuclei with weak ionization. Moreover, we show that the observedphase-shift of the dissociation asymmetry is attributed to the differentpopulation transfers by the remaining fields after the internuclear distancesreach the one-photon coupling point.

Wavelength dependence of electron localization in the laser-driven dissociation of H$_2^+$