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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 15 — Jul. 16, 2012
  • pp: 16275–16284

Role of the Coulomb potential on the ellipticity in atomic high-order harmonics generation

Xiaosong Zhu, Meiyan Qin, Qingbin Zhang, Weiyi Hong, Zhizhan Xu, and Peixiang Lu  »View Author Affiliations


Optics Express, Vol. 20, Issue 15, pp. 16275-16284 (2012)
http://dx.doi.org/10.1364/OE.20.016275


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Abstract

The role of the Coulomb potential on the generation of elliptically polarized high-order harmonics from atoms driven by elliptically polarized laser is investigated analytically. It is found that the Coulomb effect makes a contribution to the harmonic ellipticity for low harmonic orders and short quantum path. By using the strong-field eikonal-Volkov approximation, we analyze the influence of the Coulomb potential on the dynamics of the continuum state and find that the obtained harmonic ellipticity in our simulation originates from the break of symmetry of the continuum state.

© 2012 OSA

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

History
Original Manuscript: May 22, 2012
Revised Manuscript: June 12, 2012
Manuscript Accepted: June 26, 2012
Published: July 2, 2012

Citation
Xiaosong Zhu, Meiyan Qin, Qingbin Zhang, Weiyi Hong, Zhizhan Xu, and Peixiang Lu, "Role of the Coulomb potential on the ellipticity in atomic high-order harmonics generation," Opt. Express 20, 16275-16284 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-15-16275


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