Excited ions oscillatory structure

A comparison of experimental and theoretical total ion signals for delay times up to 10 ps is presented in Figs. 3.26 and 3.27 for moderate and high laser intensities respectively. The first obvious difference is that the transient ion signal for moderate laser intensity shows a distinct oscillation, whereas for high-laser-field excitation the oscillatory structure is rather poorly resolved. The disturbed oscillatory structure might be due to interferences of different wave packet signals. 

Ion-impact excitation has been widely studied in the rare gases260 270 and for alkali metal ion-atom collisions.271 280 In many cases excitation functions have been measured (i.e., total cross sections as a function of initial relative translational energy), and in some instances the angular dependencies of the differential cross sections for inelastic scattering have been determined. The most striking feature of the results from these experiments is the oscillatory structure that is evident in many of the... 

Figure 37. Schematic illustration of dual-interaction model for ion-impact excitation resulting in oscillatory structure in total cross section see text.279...

Fig. 6.35 Frequency dependent conductivity of RbAg4l5 at 129K. (More precisely

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