Modal effects on pump-pulse propagation in an Ar-filled capillary
Modal effects on pump-pulse propagation in an Ar-filled capillary
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.
13279-13284
Chapman, Richard T.
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Butcher, Thomas J.
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Horak, Peter
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Poletti, Francesco
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Frey, Jeremy G.
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Brocklesby, William S.
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7 June 2010
Chapman, Richard T.
8a9fe0e2-c408-4188-bf10-e93bf247205c
Butcher, Thomas J.
77bed03c-ae8f-4e12-8c35-974150a7cc2d
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Frey, Jeremy G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Brocklesby, William S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Chapman, Richard T., Butcher, Thomas J., Horak, Peter, Poletti, Francesco, Frey, Jeremy G. and Brocklesby, William S.
(2010)
Modal effects on pump-pulse propagation in an Ar-filled capillary.
Optics Express, 18 (12), .
(doi:10.1364/OE.18.013279).
(PMID:20588457)
Abstract
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.
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oe-18-12-13279.pdf
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Published date: 7 June 2010
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 177557
URI: http://eprints.soton.ac.uk/id/eprint/177557
ISSN: 1094-4087
PURE UUID: fdf097fa-48a3-4426-b851-56b0dbd2ff3a
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Date deposited: 17 Mar 2011 15:22
Last modified: 15 Mar 2024 02:41
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Author:
Richard T. Chapman
Author:
Thomas J. Butcher
Author:
Peter Horak
Author:
Francesco Poletti
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