Abstract:Abstract:Collective and single electron excitations of large metal clusters supported on transparent substrates are investigated. The applied experimental techniques include extinction spectroscopy and laser induced dissociation accompanied by the ejection of individual atoms. The optical spectra depend on the electromagnetic far field and reflect collective electron excitations of the conduction electrons, i.e. surface plasmons. Dissociation, however, is correlated to repulsive single electron energy levels. … Show more
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