Tracking nuclear wave-packet dynamics in molecular oxygen ions with few-cycle infrared laser pulses

S. De, I. A. Bocharova, M. Magrakvelidze, D. Ray, W. Cao, B. Bergues, U. Thumm, M. F. Kling, I. V. Litvinyuk, and C. L. Cocke
Phys. Rev. A 82, 013408 – Published 14 July 2010

Abstract

We have tracked nuclear wave-packet dynamics in doubly charged states of molecular oxygen using few-cycle infrared laser pulses. Bound and dissociating wave packets were launched and subsequently probed via a pair of 8-fs pulses of 790 nm radiation. Ionic fragments from the dissociating molecules were monitored by velocity-map imaging. Pronounced oscillations in the delay-dependent kinetic energy release spectra were observed. The occurrence of vibrational revivals permits us to identify the potential curves of the O2 dication which are most relevant to the molecular dynamics. These studies show the accessibility to the dynamics of such higher-charged molecules.

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  • Received 29 March 2010

DOI:https://doi.org/10.1103/PhysRevA.82.013408

©2010 American Physical Society

Authors & Affiliations

S. De1,*, I. A. Bocharova1, M. Magrakvelidze1, D. Ray1, W. Cao1, B. Bergues2, U. Thumm1, M. F. Kling1,2, I. V. Litvinyuk1,3, and C. L. Cocke1,†

  • 1J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
  • 2Max Planck Institute of Quantum Optics, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany
  • 3Centre for Quantum Dynamics, Griffith University, Nathan, Queensland 4111, Australia

  • *sankar@phys.ksu.edu
  • cocke@phys.ksu.edu

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Vol. 82, Iss. 1 — July 2010

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