An investigation of the correlated electronic and nuclear motion in fragmentation of H2 in 4 x 1014 W/cm2, fs laser pulses at 795 nm was presented using the electron-ion momentum spectroscopy. The channel selective electron energy distribution indicated assumption of a new H2 ionization mechanism to interpret the differences found in the fragmentation channels. The results showed that the momentum distribution of H+ ions in the dissociation channels H(1s) + H+ + e- and 2H+ + 2e- was independent of the kinetic energy of photoelectrons.
H. Rottke and C. Trump and M. Wittmann and G. Korn and W. Sandner and R. Moshammer and A. Dorn and C. D. Schroter and D. Fischer and J. R. Crespo Lopez-Urrutia and P. B. Neumayer and J. Deipenwisch and C. Hohr and B. Feuerstein and J. H. Ullrich, "Coincident Fragment Detection in Strong Field Photoionization and Dissociation of H₂," Physical Review Letters, vol. 89, no. 1, pp. 013001-1-013001-4, American Physical Society (APS), Jul 2002.
The definitive version is available at https://doi.org/10.1103/PhysRevLett.89.013001
Keywords and Phrases
Correlation Methods; Electron Energy Levels; Electron Resonance; Electron Spectroscopy; Hydrogen; Kinematics; Kinetic Energy; Laser Pulses; Molecular Structure; Photoionization; Positive Ions; Spectrometers; Electron-ion Momentum Spectroscopy; Molecular Physics
International Standard Serial Number (ISSN)
Article - Journal
© 2002 American Physical Society (APS), All rights reserved.
01 Jul 2002