Angular distribution, wavepacket

In conclusion, photoelectron angular distributions not only provide insightful fingerprints of vibrational wavepacket dynamics, but their strong... 

In this Subsection we apply the above theory of time-resolved photoelectron spectroscopy to the study of wavepacket motion on the nonadiabatically coupled ionic (Na+1 ) and covalent (Nal) states of sodium iodide. Here we show results of calculations of the energy and angular distributions... 

Fig. 5.9 Photoelectron angular distributions at delay time tpr = 125 fs (upper panel). Polar plot of the energy-integrated photoelectron angular distribution for the same delay time (lower left panel). Sodium lies at the top of the vertical axis in the polar plots in Figs. 5.9 through 5.12. Wavepacket snapshot (lower right panel). Probe polarization perpendicular to that of the pump. (Reprinted with permission from Y. Arasaki et al., J. Chem. Phys. 119, 7913 (2003)).

The energy-integrated angular distributions of photoelectrons for pump-probe delays of 1050, 1125, and 1200 fs and with the probe polarization parallel to the molecular axis. Fig. 5.12, serve as a final example. As the wavepacket moves into and through the crossing, the characteristic angular distribution of the photoelectron evolves from one that is more symmetrical with respect to ejection from the Na and I sides of the molecule at 1050 fs to one that strongly favors ejection from the I side. 

Fig. 5.11 Energy-integrated photoelectron angular distributions as wavepacket transfers from the ionic to the covalent curve (upper panel). Photoelectron angular distributions...

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