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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 14293–14300

Role of Coulomb focusing on the electron transverse momentum of above-threshold ionization

Cheng Huang, Qing Liao, Yueming Zhou, and Peixiang Lu  »View Author Affiliations


Optics Express, Vol. 18, Issue 13, pp. 14293-14300 (2010)
http://dx.doi.org/10.1364/OE.18.014293


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Abstract

We have investigated the 2D photoelectron momentum spectra for ATI of atoms exposed to linearly polarized pulses by quantum mechanical calculations. By comparing the 2D momentum spectra for the long-range and short-range Coulomb potentials, the focusing of the electron transverse momentum by the long-range interaction is clearly revealed. Analysis indicates that the Coulomb attraction of the parent core to the returning electron is responsible for the focusing of the electron transverse momentum. Moreover, the strong dependence of the focusing of the electron transverse momentum on the laser wavelength and intensity is discussed.

© 2010 Optical Society of America

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(260.3230) Physical optics : Ionization
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: May 7, 2010
Revised Manuscript: June 7, 2010
Manuscript Accepted: June 16, 2010
Published: June 18, 2010

Citation
Cheng Huang, Qing Liao, Yueming Zhou, and Peixiang Lu, "Role of Coulomb focusing on the electron transverse momentum of above-threshold ionization," Opt. Express 18, 14293-14300 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-13-14293


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