Multiphoton Excitation of Plasmons in Clusters
- Conference date: 24-28 June 2002
- Location: Rome (Italy)
We present a theoretical framework for the multiphoton excitation of plasmons. We show that, in addition to dipole plasmon excitations, multipole plasmons (quadrupole, octupole, etc) are excited in a metallic cluster by multiphoton absorption processes, resulting in a significant difference between plasmon resonance profiles in multiphoton and single‐photon absorption. The method is quite general, and applies to any system with delocalised electrons, of which the simplest are spherical metallic clusters.
- Multiphoton absorption
- Multiphoton excitation
- Multiphoton processes
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