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The distributions of electrons emitted from a metal cluster after laser excitation are analyzed from a theoretical perspective. The focus is laid on the angular distributions of the emitted electrons taking, in particular, the anisotropy as measure for the basic shape. This observable is discussed at various levels of sophistication, from stationary perturbation theory to a fully dynamical simulation...
We explore, from a theoretical perspective, photo-electron angular distributions (PAD) of small Na clusters using the time-dependent local-density approximation (TDLDA). We assume an isotropic ensemble of free clusters and develop, for the case of one-photon emission, analytical formulae for the orientation averaged PAD which require only six TDLDA calculations in properly chosen reference frames...
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