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Imaging an aligned polyatomic molecule with laser-induced electron diffraction.

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.

SUBMITTER: Pullen MG

PROVIDER: S-EPMC4491169 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Imaging an aligned polyatomic molecule with laser-induced electron diffraction.

Pullen Michael G MG Wolter Benjamin B Le Anh-Thu AT Baudisch Matthias M Hemmer Michaël M Senftleben Arne A Schröter Claus Dieter CD Ullrich Joachim J Moshammer Robert R Lin C D CD Biegert Jens J

Nature communications 20150624

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 combina ...[more]

PMID: 26105804

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