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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 3 — Feb. 11, 2013
  • pp: 3259–3264

Enhanced narrow-bandwidth emission during high-order harmonic generation from aligned molecules

Chaojin Zhang, Jinping Yao, Fadhil A. Umran, Jielei Ni, Bin Zeng, Guihua Li, and Di Lin  »View Author Affiliations

Optics Express, Vol. 21, Issue 3, pp. 3259-3264 (2013)

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We theoretically investigate the selective enhancement of high-harmonic generation (HHG) in a small spectral range when an orthogonal-polarized two-color laser field interacts with aligned O2 molecules. It is shown clearly that the enhanced narrow-bandwidth emission near the cutoff of the HHG spectrum can be effectively controlled by the molecular alignment angle, laser intensity and the relative phase of two-color laser fields. Furthermore, the strong dependence of narrow-bandwidth HHG on molecular alignment angle indicates that it encodes information about O2 molecular orbitals, so it may be an alternative method for reconstruction of O2 molecular orbitals.

© 2013 OSA

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7150) Ultrafast optics : Ultrafast spectroscopy

ToC Category:
Nonlinear Optics

Original Manuscript: December 10, 2012
Revised Manuscript: January 7, 2013
Manuscript Accepted: January 17, 2013
Published: February 1, 2013

Chaojin Zhang, Jinping Yao, Fadhil A. Umran, Jielei Ni, Bin Zeng, Guihua Li, and Di Lin, "Enhanced narrow-bandwidth emission during high-order harmonic generation from aligned molecules," Opt. Express 21, 3259-3264 (2013)

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