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  Imaging aligned OCS molecules by laser induced electron diffraction

Trabattoni, A., Trippel, S., Wiese, J., Mullins, T., Dammann, L., Wopperer, P., et al. (2017). Imaging aligned OCS molecules by laser induced electron diffraction. In 2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC). NEW YORK, NY 10017 USA: IEEE. doi:10.1109/CLEOE-EQEC.2017.8086796.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-820E-D Version Permalink: http://hdl.handle.net/21.11116/0000-0001-820F-C
Genre: Conference Paper

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08086796.pdf (Publisher version), 641KB
 
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 Creators:
Trabattoni, A.1, Author
Trippel, S.1, 2, Author
Wiese, J.1, Author
Mullins, T.1, Author
Dammann, L.1, Author
Wopperer, P.3, Author
de Giovannini, U.4, Author              
Rubio, A.4, Author              
Küpper, J.1, 2, 4, Author
Affiliations:
1Center for Free-Electron Laser Science (CFEL), DESY, ou_persistent22              
2The Hamburg Center for Ultrafast Imaging (CUI), Universität Hamburg, ou_persistent22              
3Nano-Bio Spectroscopy Group, Departamento de Fisica de Materiales, Universidad del País Vasco UPV/EHU, ou_persistent22              
4Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              

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Free keywords: DYNAMICS
 Abstract: Summary form only given. One of the ultimate goals of molecular physics is the possibility of accessing the structural dynamics of molecules through external fields. To this end, one first has to image the molecular structure and dynamics with few-fs temporal resolution and atomic spatial resolution simultaneously. Laser induced electron diffraction (LIED) is a very promising candidate for the spatiotemporal imaging of small molecules [1]. So far most of the LIED experiments have been performed on isotropic molecular samples [2, 3]. Recently, this technique was used to derive C-C and C-H bond lengths of acetylene from a molecular-frame measurement [4]. Here, we present the investigation of the geometry of strongly aligned OCS molecules by using IR-driven laser induced electron diffraction. In our experimental setup, strongly aligned molecules are prepared in the interaction area by exploiting a combination of quantum-state-selected molecular beams and pulse-shaped laser fields. Molecular orientation can also be achieved by the application of an additional moderately strong DC electric field [5]. The controlled molecules are exposed to IR-driven LIED pulses. The LIED driving field consists of linearly polarised 50-fs pulses, with a tunable wavelength in the range 1.3-2.5 μm and an energy of few hundreds μJ (at 2.5 μm) or higher.

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Language(s): eng - English
 Dates: 2017-10-302017
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Internal
 Identifiers: DOI: 10.1109/CLEOE-EQEC.2017.8086796
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Title: Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC)
Place of Event: Munich, GERMANY
Start-/End Date: 2017-06-25 - 2017-06-29

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Title: 2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)
Source Genre: Proceedings
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Publ. Info: NEW YORK, NY 10017 USA : IEEE
Pages: - Volume / Issue: - Sequence Number: INSPEC Accession Number: 17314752 Start / End Page: - Identifier: ISBN: 978-1-5090-6736-7