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APS » Journals » Phys. Rev. Lett. » Volume 100 » Issue 9
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Phys. Rev. Lett. 100, 093006 (2008) [4 pages]

Multiphoton Electron Angular Distributions from Laser-Aligned CS2 Molecules

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Vinod Kumarappan1,*, Lotte Holmegaard1, Christian Martiny2, Christian B. Madsen2, Thomas K. Kjeldsen2, Simon S. Viftrup1, Lars Bojer Madsen2,†, and Henrik Stapelfeldt1,3,‡
1Department of Chemistry, University of Aarhus, 8000 Aarhus C, Denmark
2Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C, Denmark
3Interdisciplinary Nanoscience Center (iNANO), University of Aarhus, DK-8000 Aarhus C, Denmark

Received 3 December 2007; published 7 March 2008

Laser-aligned carbondisulfide (CS2) molecules are singly ionized by multiphoton absorption from intense, linearly polarized 25 fs laser pulses. The angular distribution of the photoelectrons exhibits a significant dependence on the angle between the polarizations of the aligning and ionizing laser fields. The widely used strong-field approximation predicts angular distributions in qualitative agreement with the experimental data but fails at a quantitative level.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.093006
DOI:
10.1103/PhysRevLett.100.093006
PACS:
33.80.Rv, 33.60.+q, 42.50.Hz

*Present address: Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA.

†bojer@phys.au.dk

‡henriks@chem.au.dk

 
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