Evolution of surface plasmon resonance absorption in large gas phase clusters of mercury: Approaching the bulk

K. Rademann, O. Dimopoulou-Rademann, M. Schlauf, U. Even, F. Hensel

Research output: Contribution to journalArticlepeer-review

Abstract

We have advanced a new optical-absorption technique for the study of molecular-beam isolated clusters. For Hgx clusters 2<x<200), the optical-absorption cross sections have been measured directly between 4.3 and 6.2 eV. With increasing cluster sizes a gradual enhancement of the absorption cross section at 5.93 eV is observed and discussed in terms of a surface plasmon resonance. The spectra of large clusters can be fitted quantitatively either by using the complex dielectric function of the metallic bulk material or by using the Mie-Drude imaginary part of the dynamic polarizability.

Original languageEnglish
Pages (from-to)3208-3211
Number of pages4
JournalPhysical Review Letters
Volume69
Issue number22
DOIs
StatePublished - 1992
Externally publishedYes

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