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Opt Express. 2008 Sep 29;16(20):15923-31.

Quasi-phase-matching and dispersion characterization of harmonic generation in the perturbative regime using counterpropagating beams.

Author information

  • 1Department of Physics and JILA, University of Colorado at Boulder and NIST, Boulder, Colorado 80309, USA. alonb@jila.colorado.edu

Abstract

It is shown theoretically that second harmonic generation can be quasi-phase-matched by using a pump beam consisting of a forward propagating field and a counterpropagating pulse train. The counterpropagating setup can also be used for direct measurement of the coherence length of the nonlinear process which can determine the dispersion properties of the medium.

PMID:
18825229
[PubMed - indexed for MEDLINE]
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