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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 23 — Nov. 18, 2013
  • pp: 28676–28684

Ellipticity dependence of the near-threshold harmonics of H2 in an elliptical strong laser field

Hua Yang, Peng Liu, Ruxin Li, and Zhizhan Xu  »View Author Affiliations


Optics Express, Vol. 21, Issue 23, pp. 28676-28684 (2013)
http://dx.doi.org/10.1364/OE.21.028676


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Abstract

We study the ellipticity dependence of the near-threshold (NT) harmonics of pre-aligned H2 molecules using the time-dependent density functional theory. The anomalous maximum appearing at a non-zero ellipticity for the generated NT harmonics can be attributed to multiphoton effects of the orthogonally polarized component of the elliptical driving laser field. Our calculation also shows that the structure of the bound-state, such as molecular alignment and bond length, can be sensitively reflected on the ellipticity dependence of the near-threshold harmonics.

© 2013 Optical Society of America

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

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: October 7, 2013
Revised Manuscript: November 5, 2013
Manuscript Accepted: November 5, 2013
Published: November 14, 2013

Citation
Hua Yang, Peng Liu, Ruxin Li, and Zhizhan Xu, "Ellipticity dependence of the near-threshold harmonics of H2 in an elliptical strong laser field," Opt. Express 21, 28676-28684 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-23-28676


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