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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 9 — Apr. 26, 2010
  • pp: 9064–9070

Internuclear-distance dependence of electron correlation in nonsequential double ionization of H 2

Aihong Tong, Qing Liao, Yueming Zhou, and Peixiang Lu  »View Author Affiliations

Optics Express, Vol. 18, Issue 9, pp. 9064-9070 (2010)

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Using three-dimensional classical ensembles, we have investigated the internuclear distance dependence of nonsequential double ionization (NSDI) of H2 molecules by an 800 nm, 1×1014 W/cm2 laser pulse. For the internuclear distance R ranging from 2 to 12 a.u., the NSDI of H2 provides rich correlation patterns in the two-electron momentum distributions. These correlation patterns essentially reveal different microscopic dynamics in NSDI process. Moreover, our calculations show that R ≈ 4 a.u. is the critical distance for double ionization yield of H2. These results are qualitatively explained based on the classical barrier expression model and back analysis.

© 2010 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: February 25, 2010
Revised Manuscript: March 28, 2010
Manuscript Accepted: April 14, 2010
Published: April 15, 2010

Aihong Tong, Qing Liao, Yueming Zhou, and Peixiang Lu, "Internuclear-distance dependence of electron correlation in nonsequential double ionization of H2," Opt. Express 18, 9064-9070 (2010)

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