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Molecular variation of capillary-produced soft x-ray high harmonics

Molecular variation of capillary-produced soft x-ray high harmonics
Molecular variation of capillary-produced soft x-ray high harmonics
The production of coherent soft x-rays via high harmonic generation (HHG) from Ar, N2 and N2O in a gas-filled capillary waveguide is reported. Odd harmonics of the driving laser intensity are observed as a function of gas pressure up to energies of 50 eV. By employing a simple phase matching theory that incorporates the spatial and temporal dependences of ionization within the waveguide, good agreement with the HHG spectral envelope has been obtained, indicating phase matching is the dominant factor in shaping the spectral envelope of the harmonics.
0953-4075
145602
Stebbings, S.L.
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Rogers, E.T.F.
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de Paula, A.M.
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Praeger, M.
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Froud, C.A.
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Mills, B.
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Hanna, D.C.
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Baumberg, J.J.
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Brocklesby, W.S.
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Frey, J.G.
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Stebbings, S.L.
aa7b4db4-3297-485f-8caf-1c1c5951eae5
Rogers, E.T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
de Paula, A.M.
834793cd-08ba-4c24-9d74-d8d4d8206867
Praeger, M.
84575f28-4530-4f89-9355-9c5b6acc6cac
Froud, C.A.
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Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Hanna, D.C.
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Baumberg, J.J.
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Brocklesby, W.S.
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Frey, J.G.
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Stebbings, S.L., Rogers, E.T.F., de Paula, A.M., Praeger, M., Froud, C.A., Mills, B., Hanna, D.C., Baumberg, J.J., Brocklesby, W.S. and Frey, J.G. (2008) Molecular variation of capillary-produced soft x-ray high harmonics. Journal of Physics B: Atomic and Molecular Physics, 41 (14), 145602. (doi:10.1088/0953-4075/41/14/145602).

Record type: Article

Abstract

The production of coherent soft x-rays via high harmonic generation (HHG) from Ar, N2 and N2O in a gas-filled capillary waveguide is reported. Odd harmonics of the driving laser intensity are observed as a function of gas pressure up to energies of 50 eV. By employing a simple phase matching theory that incorporates the spatial and temporal dependences of ionization within the waveguide, good agreement with the HHG spectral envelope has been obtained, indicating phase matching is the dominant factor in shaping the spectral envelope of the harmonics.

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Published date: 4 July 2008
Organisations: Chemistry, Optoelectronics Research Centre, Physics & Astronomy

Identifiers

Local EPrints ID: 163397
URI: http://eprints.soton.ac.uk/id/eprint/163397
ISSN: 0953-4075
PURE UUID: f935a72f-80c8-4fcb-a17e-71733fa24fad
ORCID for M. Praeger: ORCID iD orcid.org/0000-0002-5814-6155
ORCID for B. Mills: ORCID iD orcid.org/0000-0002-1784-1012
ORCID for W.S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712
ORCID for J.G. Frey: ORCID iD orcid.org/0000-0003-0842-4302

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Date deposited: 08 Sep 2010 12:59
Last modified: 18 Feb 2021 17:12

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Contributors

Author: S.L. Stebbings
Author: E.T.F. Rogers
Author: A.M. de Paula
Author: M. Praeger ORCID iD
Author: C.A. Froud
Author: B. Mills ORCID iD
Author: D.C. Hanna
Author: J.J. Baumberg
Author: W.S. Brocklesby ORCID iD
Author: J.G. Frey ORCID iD

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