Asymmetry in the momentum distribution of H+$\mathrm{p}$ from dissociative ionization of $\mathrm{H_{2}}$ controlled by the carrier-envelope phase of a few-cycle pulse

ORAL

Abstract

We present theoretical results on the interaction of $\mathrm{H_{2}}$ with an ultrashort linearly polarized laser pulse of 6 fs duration. We investigate the carrier-envelope phase effects of this ultrashort laser pulse on the asymmetry of the momentum distribution of H+$\mathrm{p}$ along the laser polarization direction. To do so, we model the $\mathrm{H_{2}}$ ionization by launching a coherent wavepacket on $\mathrm{H_{2}^{+}}$ potential curves at each field maximum, and then propagate wavepackets in time on $\mathrm{H_{2}^{+}}$ Born-Oppenheimer potential curves coupled by the laser. Nuclear rotation and vibration are both included in the Schr{\"o}dinger equation for $\mathrm{H_{2}^{+}}$ . Our results will be compared to a recent experimental measurement [1]. We will also compare our results to calculations neglecting rotation and discuss the limitations of such a model.\\[4pt] [1] Manuel Kremer \textit{et al.}, Phys. Rev. Lett. 103.213003 (2009)

Authors

  • Shuo Zeng

    J.R. Macdonald Laboratory, Department of Physics, Kansas State University, J.R.Macdonald Laboratory, Department of Physics, Kansas State University

  • Fatima Anis

    J. R. Macdonald Laboratory, Dept. of Physics, Kansas State University, J. R. Macdonald Laboratory, Kansas State University, J.R. Macdonald Laboratory, Department of Physics, Kansas State University

  • B.D. Esry

    Department of Physics, Kansas State University, Department of Physics, Kansas State Uiversity, J. R. Macdonald Laboratory, Dept. of Physics, Kansas State University, J. R. Macdonald Laboratory, Kansas State University, J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Kansas State University, J.R.Macdonald Laboratory, Department of Physics, Kansas State University