The University of Southampton
University of Southampton Institutional Repository

Towards single molecule shape determination with laser generated soft X-rays

Towards single molecule shape determination with laser generated soft X-rays
Towards single molecule shape determination with laser generated soft X-rays
High Harmonic Generation (HHG) in a gas filled capillary provides a convenient source of coherent soft x-rays, which can be focussed using glass fibre tapers to provide an x-ray source to record diffraction and scattering images of sub-micron particles, to demonstrate the feasibility of moving down in scale to image single molecules. We demonstrate the ability to control and scan the x-ray spectrum. Control over the tuning can be achieved by using different gases, by changing the average intensity of the laser pulse or by varying the quadratic spectral phase of the laser pulse. We observe an ionization-dependent blue-shift of the fundamental wavelength that is directly imprinted on the harmonic wavelengths. The harmonic tuning is shown to depend on nonlinear spectral shifts of the fundamental laser pulse that are due to the plasma created by ionization. We can spatially resolve the x-ray spectra from a single grid diffraction image.
x-ray, HHG, diffraction, scattering
Froud, C.
5462f6f5-3d1e-40e2-a362-d9e4d9ddd691
de Paula, A.M.
834793cd-08ba-4c24-9d74-d8d4d8206867
Rogers, E.T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Stebbings, S.L.
18808776-04f6-460f-9e41-886bd0acfced
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Frey, J.G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Neev, J.
6ee452b4-b52b-4d09-ae0b-e0c3c621b11b
Schaffer, C.B.
90188a23-db58-4c85-b6b2-91139a3fde4f
Ostendorf, A.
6a50f922-c11d-4d52-ac7b-ea511cd5ccde
Nolte, S.
dad4037c-94dc-4160-a7ec-7c57b020e686
Froud, C.
5462f6f5-3d1e-40e2-a362-d9e4d9ddd691
de Paula, A.M.
834793cd-08ba-4c24-9d74-d8d4d8206867
Rogers, E.T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Stebbings, S.L.
18808776-04f6-460f-9e41-886bd0acfced
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Frey, J.G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Neev, J.
6ee452b4-b52b-4d09-ae0b-e0c3c621b11b
Schaffer, C.B.
90188a23-db58-4c85-b6b2-91139a3fde4f
Ostendorf, A.
6a50f922-c11d-4d52-ac7b-ea511cd5ccde
Nolte, S.
dad4037c-94dc-4160-a7ec-7c57b020e686

Froud, C., de Paula, A.M., Rogers, E.T.F., Stebbings, S.L., Brocklesby, W.S., Baumberg, J.J. and Frey, J.G. (2006) Towards single molecule shape determination with laser generated soft X-rays. Neev, J., Schaffer, C.B., Ostendorf, A. and Nolte, S. (eds.) American Chemical Society 232 National Meeting. 10 - 14 Sep 2006.

Record type: Conference or Workshop Item (Other)

Abstract

High Harmonic Generation (HHG) in a gas filled capillary provides a convenient source of coherent soft x-rays, which can be focussed using glass fibre tapers to provide an x-ray source to record diffraction and scattering images of sub-micron particles, to demonstrate the feasibility of moving down in scale to image single molecules. We demonstrate the ability to control and scan the x-ray spectrum. Control over the tuning can be achieved by using different gases, by changing the average intensity of the laser pulse or by varying the quadratic spectral phase of the laser pulse. We observe an ionization-dependent blue-shift of the fundamental wavelength that is directly imprinted on the harmonic wavelengths. The harmonic tuning is shown to depend on nonlinear spectral shifts of the fundamental laser pulse that are due to the plasma created by ionization. We can spatially resolve the x-ray spectra from a single grid diffraction image.

Text
ACS_xray_talk.pdf - Other
Download (21MB)
Slideshow
ACS_xray_Talk.ppt - Other
Restricted to Registered users only
Download (13MB)
Request a copy

More information

Published date: 12 September 2006
Venue - Dates: American Chemical Society 232 National Meeting, 2006-09-10 - 2006-09-14
Keywords: x-ray, HHG, diffraction, scattering
Organisations: Chemistry, Optoelectronics Research Centre, Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 41500
URI: http://eprints.soton.ac.uk/id/eprint/41500
PURE UUID: d9443380-4c4f-4adc-9ebf-55d7569ae892
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: 20 Sep 2006
Last modified: 06 Jun 2018 13:18

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×