Imaging an aligned polyatomic molecule with laser-induced electron diffraction

Michael G. Pullen (), Benjamin Wolter, Anh-Thu Le, Matthias Baudisch, Michaël Hemmer, Arne Senftleben, Claus Dieter Schröter, Joachim Ullrich, Robert Moshammer, C. D. Lin and Jens Biegert
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Michael G. Pullen: ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park
Benjamin Wolter: ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park
Anh-Thu Le: J. R. Macdonald Laboratory, Kansas State University
Matthias Baudisch: ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park
Michaël Hemmer: ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park
Arne Senftleben: Universität Kassel, Institut für Physik und CINSaT
Claus Dieter Schröter: Max-Planck-Institut für Kernphysik
Joachim Ullrich: Max-Planck-Institut für Kernphysik
Robert Moshammer: Max-Planck-Institut für Kernphysik
C. D. Lin: J. R. Macdonald Laboratory, Kansas State University
Jens Biegert: ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Laser-induced electron diffraction is an evolving tabletop method that aims to image ultrafast structural changes in gas-phase polyatomic molecules with sub-Ångström spatial and femtosecond temporal resolutions. Here we demonstrate the retrieval of multiple bond lengths from a polyatomic molecule by simultaneously measuring the C–C and C–H bond lengths in aligned acetylene. Our approach takes the method beyond the hitherto achieved imaging of simple diatomic molecules and is based on the combination of a 160 kHz mid-infrared few-cycle laser source with full three-dimensional electron–ion coincidence detection. Our technique provides an accessible and robust route towards imaging ultrafast processes in complex gas-phase molecules with atto- to femto-second temporal resolution.

Date: 2015
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DOI: 10.1038/ncomms8262

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