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Desorption Dynamics of Rb_2 Molecules off the Surface of Helium Nanodroplets | | A. Sieg
; J. von Vangerow
; F. Stienkemeier
; O. Dulieu
; M. Mudrich
; | | Date: |
23 Aug 2016 | | Abstract: | The desorption dynamics of rubidium dimers (Rb_2) off the surface of helium
nanodroplets induced by laser excitation is studied employing both nanosecond
and femtosecond ion imaging spectroscopy. Similarly to alkali metal atoms, we
find that the Rb_2 desorption process resembles the dissociation of a diatomic
molecule. However, both angular and energy distributions of detected Rb_2^+
ions appear to be most crucially determined by the Rb_2 intramolecular degrees
of freedom rather than by those of the Rb_2He_N complex. The pump-probe
dynamics of Rb_2^+ is found to be slower than that of Rb^+ pointing at a weaker
effective guest-host repulsion for excited molecules than for single atoms. | | Source: | arXiv, 1608.6463 | | Services: | Forum | Review | PDF | Favorites | |
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