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Spatially resolved soft X-ray spectrometry from single-image diffraction

Spatially resolved soft X-ray spectrometry from single-image diffraction
Spatially resolved soft X-ray spectrometry from single-image diffraction
High-harmonic generation (HHG) offers better coherence, shorter pulse durations and far greater accessibility than synchrotron sources. These factors make HHG an increasingly important source of soft X-rays and an excellent resource in many emerging areas, for example, the time-resolved study of conformational changes in single biological molecules. Here, we demonstrate a novel technique that enables us to reconstruct spectral information spatially across an X-ray beam. As only a single diffraction image is required per measurement, this technique is well suited to time-resolved studies. This technique is applicable to many types of X-ray source and can be adapted for different spectral regions. Here, results are obtained using a capillary high-harmonic source, revealing detailed information that brings new insight into the physical processes occurring inside the source and enabling us to show the first measurement of radial variation of harmonic order in the emission from an HHG capillary.
pulses, high-harmonic generation, high-order harmonics, phase, coherence
1745-2473
176-179
Praeger, M.
84575f28-4530-4f89-9355-9c5b6acc6cac
de Paula, A.M.
834793cd-08ba-4c24-9d74-d8d4d8206867
Froud, C.A.
5462f6f5-3d1e-40e2-a362-d9e4d9ddd691
Rogers, E.T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Stebbings, S.L.
aa7b4db4-3297-485f-8caf-1c1c5951eae5
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Frey, J.G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Praeger, M.
84575f28-4530-4f89-9355-9c5b6acc6cac
de Paula, A.M.
834793cd-08ba-4c24-9d74-d8d4d8206867
Froud, C.A.
5462f6f5-3d1e-40e2-a362-d9e4d9ddd691
Rogers, E.T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Stebbings, S.L.
aa7b4db4-3297-485f-8caf-1c1c5951eae5
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Frey, J.G.
ba60c559-c4af-44f1-87e6-ce69819bf23f

Praeger, M., de Paula, A.M., Froud, C.A., Rogers, E.T.F., Stebbings, S.L., Brocklesby, W.S., Baumberg, J.J., Hanna, D.C. and Frey, J.G. (2007) Spatially resolved soft X-ray spectrometry from single-image diffraction. Nature Physics, 3 (3), 176-179. (doi:10.1038/nphys516).

Record type: Article

Abstract

High-harmonic generation (HHG) offers better coherence, shorter pulse durations and far greater accessibility than synchrotron sources. These factors make HHG an increasingly important source of soft X-rays and an excellent resource in many emerging areas, for example, the time-resolved study of conformational changes in single biological molecules. Here, we demonstrate a novel technique that enables us to reconstruct spectral information spatially across an X-ray beam. As only a single diffraction image is required per measurement, this technique is well suited to time-resolved studies. This technique is applicable to many types of X-ray source and can be adapted for different spectral regions. Here, results are obtained using a capillary high-harmonic source, revealing detailed information that brings new insight into the physical processes occurring inside the source and enabling us to show the first measurement of radial variation of harmonic order in the emission from an HHG capillary.

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More information

e-pub ahead of print date: 4 February 2007
Published date: March 2007
Keywords: pulses, high-harmonic generation, high-order harmonics, phase, coherence
Organisations: Chemistry, Optoelectronics Research Centre, EEE

Identifiers

Local EPrints ID: 46624
URI: http://eprints.soton.ac.uk/id/eprint/46624
ISSN: 1745-2473
PURE UUID: 25f5b765-e3b8-4bdc-ba35-78a9aaecdb3f
ORCID for M. Praeger: ORCID iD orcid.org/0000-0002-5814-6155
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

Catalogue record

Date deposited: 09 Jul 2007
Last modified: 18 Feb 2021 17:12

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Contributors

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

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