F Calvayrac et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 1367 doi:10.1088/0953-4075/31/6/021
Ionic structure and plasmon response in sodium clusters
F Calvayrac
, P-G Reinhard
and E Suraud
The linear and nonlinear optical response of sodium clusters is studied using fully three-dimensional electronic dynamics with frozen ionic positions. The detailed ionic structure produces more spectral fragmentation than a comparable jellium model, and the fragmentation patterns come close to measured spectra, even at low temperatures. The nonlinear response shows the same trends as found in former, symmetry restricted, investigations, namely that the plasmon resonance is a very harmonic mode showing no trace of nonlinear effects as secondary harmonics or spectral diffusion.
- PACS
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36.40.Gk Plasma and collective effects in clusters
31.10.+z Theory of electronic structure, electronic transitions, and chemical binding
36.40.Qv Stability and fragmentation of clusters
- Subjects
- Dates
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Issue 6 (28 March 1998)
Received 3 July 1997, in final form 16 December 1997
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Ionic structure and plasmon response in sodium clusters
F Calvayrac et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 1367
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