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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 9 — May. 1, 2010
  • pp: 1350–1352

Polarization pulse shaping induced by impulsive molecular alignment in optical filamentation and application to high-order harmonic generation

M. Negro, C. Vozzi, F. Calegari, S. De Silvestri, and S. Stagira  »View Author Affiliations

Optics Letters, Vol. 35, Issue 9, pp. 1350-1352 (2010)

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We investigated theoretically and experimentally the ultrafast birefringence induced by impulsive alignment in a molecular gas during optical filamentation. This phenomenon is able to substantially affect the polarization state of an ultrashort laser pulse that propagates through the aligned medium at suitable delays from a first aligning pulse. We exploited this modulation of the polarization state in order to effectively control the high-order harmonic generation (HHG) process, which is strongly dependent on the driving pulse polarization. These results open new and fascinating perspectives for the tailoring of strong-field phenomena by means of polarization pulse shaping.

© 2010 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(320.5540) Ultrafast optics : Pulse shaping
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

Original Manuscript: February 3, 2010
Manuscript Accepted: March 4, 2010
Published: April 23, 2010

M. Negro, C. Vozzi, F. Calegari, S. De Silvestri, and S. Stagira, "Polarization pulse shaping induced by impulsive molecular alignment in optical filamentation and application to high-order harmonic generation," Opt. Lett. 35, 1350-1352 (2010)

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