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Multiphoton Electron Angular Distributions from Laser-Aligned CS 2 Molecules

2008; American Physical Society; Volume: 100; Issue: 9 Linguagem: Inglês

10.1103/physrevlett.100.093006

1092-0145

Vinod Kumarappan, Lotte Holmegaard, C. P. J. Martiny, C. B. Madsen, Thomas Kim Kjeldsen, Simon S. Viftrup, Lars Bojer Madsen, Henrik Stapelfeldt,

Advanced Chemical Physics Studies

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.