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Plasmon Dynamics at Nanostructured Surfaces and Deposited Clusters

Spatio-temporal femtosecond-dynamics observed by means of phase- and time-resolved PEEM for plasmon-resonant excitation of a silver nanoparticle. The imaged particle in the center of the row has been prepared by electron-beam lithography and has a diameter of 200 nm. We observe a modulation of the internal lateral photoemission distribution in the particle as function of the phase-relation between the two identical femtosecond laser-pulses used for this pump-probe experiment. We assign this modulation to the phase-propagation of a plasmon mode through the nanoparticle.


financial support:

  • DFG priority program 1153 "Clusters in contact with surfaces: electronic structure and magnetism"
  • Forschungsschwerpunkt des Landes Rheinland-Pfalz "Optische Technologien und lasergesteuerte Prozesse (OTLAP)"