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Title: Investigating two-photon double ionization of D{sub 2} by XUV-pump-XUV-probe experiments

Journal Article · · Physical Review. A
; ; ; ; ;  [1]; ;  [2]; ; ; ;  [3]; ; ;  [4]; ;  [5];  [6]; ;  [7]
  1. Max-Planck-Institut fuer Kernphysik, D-69117 Heidelberg (Germany)
  2. Max-Planck Advanced Study Group at CFEL, D-22607 Hamburg (Germany)
  3. Departamento de Quimica C-9, Universidad Autonoma de Madrid, 28049 Madrid (Spain)
  4. Max-Planck-Institut fuer Quantenoptik, D-85748 Garching (Germany)
  5. Institut fuer Kernphysik, Universitaet Frankfurt, D-60486 Frankfurt (Germany)
  6. Instituto de Fisica, Universidad de Antioquia, Medellin (Colombia)
  7. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

We used a split-mirror setup attached to a reaction microscope at the free-electron laser in Hamburg (FLASH) to perform an XUV-pump-XUV-probe experiment by tracing the ultrafast nuclear wave-packet motion in the D{sub 2}{sup +}(1s{sigma}{sub g}) with <10 fs time resolution. Comparison with time-dependent calculations shows excellent agreement with the measured vibrational period of 22{+-}4 fs in D{sub 2}{sup +}, points to the importance of accurately knowing the internuclear distance-dependent ionization probability, and paves the way to control sequential and nonsequential two-photon double-ionization contributions.

OSTI ID:
21413354
Journal Information:
Physical Review. A, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevA.81.051402; (c) 2010 The American Physical Society; ISSN 1050-2947
Country of Publication:
United States
Language:
English