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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 12 — Jun. 7, 2010
  • pp: 13279–13284

Modal effects on pump-pulse propagation in an Ar-filled capillary

Richard T. Chapman, Thomas J. Butcher, Peter Horak, Francesco Poletti, Jeremy G. Frey, and William S. Brocklesby  »View Author Affiliations

Optics Express, Vol. 18, Issue 12, pp. 13279-13284 (2010)

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Accurate three-dimensional modelling of nonlinear pulse propagation within a gas-filled capillary is essential for understanding and improving the XUV yield in high harmonic generation. We introduce both a new model based on a multimode generalized nonlinear Schrödinger equation and a novel spatio-spectral measurement technique to which the model can be compared. The theory shows excellent agreement with the measured output spectrum and the spatio-spectral measurement reveals that the model correctly predicts higher order mode contributions to spectral broadening of the pulse. Fluorescence from the excited argon is used to verify the predicted ion distribution along the capillary.

© 2010 OSA

OCIS Codes
(080.1510) Geometric optics : Propagation methods
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

Original Manuscript: April 13, 2010
Revised Manuscript: May 24, 2010
Manuscript Accepted: May 27, 2010
Published: June 4, 2010

Richard T. Chapman, Thomas J. Butcher, Peter Horak, Francesco Poletti, Jeremy G. Frey, and William S. Brocklesby, "Modal effects on pump-pulse propagation in an Ar-filled capillary," Opt. Express 18, 13279-13284 (2010)

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