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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 2 — Jan. 15, 2008
  • pp: 174–176

Quasi-phase matching of high-order harmonic generation at high photon energies using counterpropagating pulses

A. L. Lytle, X. Zhang, P. Arpin, O. Cohen, M. M. Murnane, and H. C. Kapteyn  »View Author Affiliations


Optics Letters, Vol. 33, Issue 2, pp. 174-176 (2008)
http://dx.doi.org/10.1364/OL.33.000174


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Abstract

We extend all-optical quasi-phase matching of high-order harmonic generation into spectral regions where conventional phase matching is not possible. The high laser intensities required to generate harmonics at energy > 130 eV , coupled with the resulting high level of ionization, preclude conventional phase matching in all nonlinear media. Selective enhancement factors between 40 and 150 in the flux of harmonics at photon energies around 140 eV are demonstrated using a train of two counterpropagating pulses.

© 2008 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 25, 2007
Revised Manuscript: November 15, 2007
Manuscript Accepted: November 16, 2007
Published: January 11, 2008

Citation
A. L. Lytle, X. Zhang, P. Arpin, O. Cohen, M. M. Murnane, and H. C. Kapteyn, "Quasi-phase matching of high-order harmonic generation at high photon energies using counterpropagating pulses," Opt. Lett. 33, 174-176 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-2-174

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