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Applied Physics B

, Volume 113, Issue 1, pp 75–79 | Cite as

Nano-antenna-assisted harmonic generation

  • Nils Pfullmann
  • Christian Waltermann
  • Milutin Kovačev
  • Vanessa Knittel
  • Rudolf Bratschitsch
  • Dieter Akemeier
  • Andreas Hütten
  • Alfred Leitenstorfer
  • Uwe Morgner
Article

Abstract

We report on low-order harmonic generation utilising the plasmonic field enhancement in arrays of rod-type gold optical antennae. Furthermore, we examine their suitability to support high-order harmonic generation (HHG). The low-order harmonics are used as a tool to investigate the nonlinear properties of the antennae. Particular attention is paid to the thermal properties, which become significant at the peak intensities necessary for HHG. A theoretical model explains the experimental findings and enables future improvements. In experiments we observe up to the fifth harmonic order and measure a field enhancement sufficient to support high-order harmonic generation. Moreover, we find a damage threshold for the antennae.

Keywords

Antenna Array Field Enhancement Harmonic Signal Electron Beam Lithography Harmonic Order 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work was funded by Deutsche Forschungsgemeinschaft within the Cluster of Excellence QUEST, Centre for Quantum Engineering and Space-Time Research.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Nils Pfullmann
    • 1
    • 2
  • Christian Waltermann
    • 1
    • 2
  • Milutin Kovačev
    • 1
    • 2
  • Vanessa Knittel
    • 3
  • Rudolf Bratschitsch
    • 4
  • Dieter Akemeier
    • 5
  • Andreas Hütten
    • 5
  • Alfred Leitenstorfer
    • 3
  • Uwe Morgner
    • 1
    • 2
    • 6
  1. 1.Institut für QuantenoptikLeibniz Universität HannoverHannoverGermany
  2. 2.QUEST, Centre for Quantum Engineering and Space-Time ResearchHannoverGermany
  3. 3.Department of Physics, Center for Applied PhotonicsUniversity of KonstanzKonstanzGermany
  4. 4.Institut für Physik, Dynamik nanoskopischer und mesoskopischer StrukturenTechnische Universität ChemnitzChemnitzGermany
  5. 5.Thin Films and Physics of Nanostructures, Department of PhysicsBielefeld UniversityBielefeldGermany
  6. 6.Laser Zentrum Hannover e.V.HannoverGermany

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