Atomic-resolution imaging of carbonyl sulfide by laser-induced electron diffraction

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  • Evangelos T. Karamatskos, DESY Photon Science, Universitat Hamburg
  • ,
  • Gildas Goldsztejn, Max Born Institute, 12489 Berlin
  • ,
  • Sebastian Raabe, Max Born Institute, 12489 Berlin
  • ,
  • Philipp Stammer, Max Born Institute, 12489 Berlin
  • ,
  • Terry Mullins, DESY Photon Science
  • ,
  • Andrea Trabattoni, DESY Photon Science
  • ,
  • Rasmus R. Johansen
  • ,
  • Henrik Stapelfeldt
  • Sebastian Trippel, DESY Photon Science, Universitat Hamburg
  • ,
  • Marc J.J. Vrakking, Max Born Institute, 12489 Berlin
  • ,
  • Jochen Küpper, DESY Photon Science, Universitat Hamburg
  • ,
  • Arnaud Rouzée, Max Born Institute, 12489 Berlin

Measurements on the strong-field ionization of carbonyl sulfide molecules by short, intense, 2 μm wavelength laser pulses are presented from experiments where angle-resolved photoelectron distributions were recorded with a high-energy velocity map imaging spectrometer, designed to reach a maximum kinetic energy of 500 eV. The laser-field-free elastic-scattering cross section of carbonyl sulfide was extracted from the measurements and is found in good agreement with previous experiments, performed using conventional electron diffraction. By comparing our measurements to the results of calculations, based on the quantitative rescattering theory, the bond lengths and molecular geometry were extracted from the experimental differential cross sections to a precision better than ±5 pm and in agreement with the known values.

OriginalsprogEngelsk
Artikelnummer244301
TidsskriftJournal of Chemical Physics
Vol/bind150
Nummer24
Antal sider9
ISSN0021-9606
DOI
StatusUdgivet - 2019

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