Nonlinear optical mode coupling by ionization in an Ar-filled capillary with high-power short-pulse excitation
Nonlinear optical mode coupling by ionization in an Ar-filled capillary with high-power short-pulse excitation
High-power ultrashort laser pulses at near-infrared wavelengths propagating in gas-filled capillaries can form a compact source of XUV/soft X-ray radiation by high-harmonic generation (HHG) [1]. Maximization of the frequency conversion efficiency requires a detailed understanding of the atomic interaction mechanism as well as the propagation properties of both the near-infrared pump in the presence of a partially ionized gas and of the generated XUV. Here we focus on the numerical simulation of pulse propagation in a parameter regime dominated by plasma effects and by the nonlinear properties of ionization, and compare the results with experimental observations.
Horak, P.
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Chapman, R.T.
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Poletti, F.
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Frey, J.G.
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Brocklesby, W.S.
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14 June 2009
Horak, P.
520489b5-ccc7-4d29-bb30-c1e36436ea03
Chapman, R.T.
8a9fe0e2-c408-4188-bf10-e93bf247205c
Poletti, F.
9adcef99-5558-4644-96d7-ce24b5897491
Frey, J.G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Horak, P., Chapman, R.T., Poletti, F., Frey, J.G. and Brocklesby, W.S.
(2009)
Nonlinear optical mode coupling by ionization in an Ar-filled capillary with high-power short-pulse excitation.
European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), , Munich, Germany.
14 - 19 Jun 2009.
Record type:
Conference or Workshop Item
(Paper)
Abstract
High-power ultrashort laser pulses at near-infrared wavelengths propagating in gas-filled capillaries can form a compact source of XUV/soft X-ray radiation by high-harmonic generation (HHG) [1]. Maximization of the frequency conversion efficiency requires a detailed understanding of the atomic interaction mechanism as well as the propagation properties of both the near-infrared pump in the presence of a partially ionized gas and of the generated XUV. Here we focus on the numerical simulation of pulse propagation in a parameter regime dominated by plasma effects and by the nonlinear properties of ionization, and compare the results with experimental observations.
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Published date: 14 June 2009
Venue - Dates:
European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), , Munich, Germany, 2009-06-14 - 2009-06-19
Identifiers
Local EPrints ID: 78990
URI: http://eprints.soton.ac.uk/id/eprint/78990
PURE UUID: f6448b55-4e47-4e35-a456-8dceddd6beb7
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Date deposited: 19 Mar 2010
Last modified: 14 Mar 2024 02:52
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Contributors
Author:
P. Horak
Author:
R.T. Chapman
Author:
F. Poletti
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