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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 3 — Feb. 5, 2007
  • pp: 767–778

Recollision Dynamics and Time Delay in Strong-Field Double Ionization

S.L. Haan, L. Breen, A. Karim, and J.H. Eberly  »View Author Affiliations

Optics Express, Vol. 15, Issue 3, pp. 767-778 (2007)

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Three-dimensional classical ensembles are employed to study recollision dynamics in double ionization of atoms by 780-nm intense lasers. After recollision one electron typically remains bound to the atom for a portion of a laser cycle, during which time the nucleus strongly influences its direction of motion. The electron then escapes over a suppressed barrier, with its final momentum depending critically on the laser phase at escape. The other electron remains unbound after collision, and typically drifts out in a momentum hemisphere opposite from its motion just after the collision. Several example trajectories at intensity 0.4 PW/cm2 with various time delays between recollision and ionization are presented.

© 2007 Optical Society of America

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(260.3230) Physical optics : Ionization
(270.6620) Quantum optics : Strong-field processes

ToC Category:
Atomic and Molecular Physics

Original Manuscript: December 11, 2006
Manuscript Accepted: January 17, 2007
Published: February 5, 2007

S. L. Haan, L. Breen, A. Karim, and J. H. Eberly, "Recollision dynamics and time delay in strong-field double ionization," Opt. Express 15, 767-778 (2007)

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