Selective mode excitation in 2D dust clusters

ORAL

Abstract

The dynamical properties of dust clusters are still a hot topic in recent research activities. In many applications intense lasers are used as a tool for the manipulation of the dynamics of particle systems. For example, specific particle motion patterns like the intershell rotation of small clusters can be driven or the systems can be effectively heated by randomized momentum transfer using multiple lasers. In this contribution we present a method to drive a selection of eigenmodes of the particle system, which are mainly associated with radial particle oscillations, and give a characterization of the driving mechanism. Further, the impact of a localized driving force on the ability to excite either breathing or wave-like modes is discussed.

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Authors

  • Jan Schablinski

    University of Kiel, University of Kiel, Germany

  • Dietmar Block

    University of Kiel, University of Kiel, Germany

  • Andre Melzer

    University of Greifswald, Institute of Physics, University Greifswald, 17498 Greifswald, Germany

  • Alexander Piel

    University of Kiel, University of Kiel, Germany