Phase dependence of electron localization in HeH$^{2+}$ dissociation with an intense few-cycle laser pulse

Details Phase dependence of electron localization in HeH$^{2+}$ dissociation with an intense few-cycle laser pulse Phase dependence of electron localization in HeH$^{2+}$ dissociation with an intense few-cycle laser pulse

2011-09-27

arxiv.org/abs/1109.5869v1

Optics Express, Vol. 19, Issue 21, pp. 20279-20287 (2011)

Physics

Atomic Physics

Scientific paper

10.1364/OE.19.020279

The electron localization in the dissociation of the asymmetric charged molecular ion HeH$^{2+}$ exposed to an intense few-cycle laser pulse is studied by solving numerically the 3D time-dependent Schr\"odinger equation. By varying the carrier-envelope phase (CEP) and the intensity of the pulse, the upward shift of the localization probability and the suppression of the dissociation channel He$^{2+}$+H are observed . Our analysis shows that the phenomenon is attributed to the asymmetric structure of the molecule as well as the recollision-assistant field-induced ionization of the electron wave packets localized on H$^+$ in the trailing of the pulse.

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