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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 2 — Jan. 17, 2011
  • pp: 436–447

Two-center interference in high-order harmonic generation from heteronuclear diatomic molecules

Xiaosong Zhu, Qingbin Zhang, Weiyi Hong, Pengfei Lan, and Peixiang Lu  »View Author Affiliations

Optics Express, Vol. 19, Issue 2, pp. 436-447 (2011)

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Two-center interference for heteronuclear diatomic molecules (HeDM) is investigated. The minimum in the high-order harmonic spectrum, as a consequence of the destructive interference, is shifted to lower harmonic orders compared with that in a homonuclear case. This phenomenon is explained by performing phase analysis. It is found that, for an HeDM, the high harmonic spectrum contains information not only on the internuclear separation but also on the properties of the two separate centers, which implies the potential application of estimating the asymmetry of molecules and judging the linear combination of atomic orbitals (LCAO) for the highest occupied molecular orbital (HOMO). Moreover, the possibility to monitor the evolution of HOMO itself in molecular dynamics is also promised.

© 2011 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(300.6560) Spectroscopy : Spectroscopy, x-ray

ToC Category:
Nonlinear Optics

Original Manuscript: November 8, 2010
Revised Manuscript: December 17, 2010
Manuscript Accepted: December 18, 2010
Published: January 3, 2011

Xiaosong Zhu, Qingbin Zhang, Weiyi Hong, Pengfei Lan, and Peixiang Lu, "Two-center interference in high-order harmonic generation from heteronuclear diatomic molecules," Opt. Express 19, 436-447 (2011)

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