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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 18 — Aug. 31, 2009
  • pp: 16300–16305

Measurement of field-free molecular alignment by cross-defocusing assisted polarization spectroscopy

Jian Wu, Hua Cai, Yuqi Tong, and Heping Zeng  »View Author Affiliations

Optics Express, Vol. 17, Issue 18, pp. 16300-16305 (2009)

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We demonstrate the measurement of field-free molecular alignment of nitrogen by a cross-(de)focusing assisted polarization spectroscopy technique, allowing us to distinguish the transient orientation of prealigned molecules on the basis of the relative ratio of the adjacent revival peaks of the measured signal. For impulsive excitation with high pump intensities, the involved orientation-dependent ionization of the neutral molecules contributes to the signal.

© 2009 OSA

OCIS Codes
(260.5950) Physical optics : Self-focusing
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

Original Manuscript: June 4, 2009
Revised Manuscript: August 11, 2009
Manuscript Accepted: August 26, 2009
Published: August 28, 2009

Jian Wu, Hua Cai, Yuqi Tong, and Heping Zeng, "Measurement of field-free molecular alignment by cross-defocusing assisted polarization spectroscopy," Opt. Express 17, 16300-16305 (2009)

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