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Plasmonic Nickel Nanoantennas

  1. Jianing Chen1,2,
  2. Pablo Albella1,2,
  3. Zhaleh Pirzadeh3,
  4. Pablo Alonso-González1,
  5. Florian Huth1,9,
  6. Stefano Bonetti5,
  7. Valentina Bonanni3,5,
  8. Johan Åkerman4,5,
  9. Josep Nogués6,7,
  10. Paolo Vavassori1,8,
  11. Alexandre Dmitriev3,
  12. Javier Aizpurua2,
  13. Rainer Hillenbrand1,8,*

Article first published online: 16 JUN 2011

DOI: 10.1002/smll.201100640

Issue

Small

Small

Volume 7, Issue 16, pages 2341–2347, August 22, 2011

Additional Information

How to Cite

Chen, J., Albella, P., Pirzadeh, Z., Alonso-González, P., Huth, F., Bonetti, S., Bonanni, V., Åkerman, J., Nogués, J., Vavassori, P., Dmitriev, A., Aizpurua, J. and Hillenbrand, R. (2011), Plasmonic Nickel Nanoantennas. Small, 7: 2341–2347. doi: 10.1002/smll.201100640

Author Information

  1. 1

    CIC nanoGUNE Consolider, 20018 Donostia-San Sebstián, Spain

  2. 2

    Centro de Fisica de Materiales (CSIC-UPV/EHU) and Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastián, Spain

  3. 3

    Department of Applied Physics, Chalmers University of Technology, 41296 Gothenburg, Sweden

  4. 4

    Department of Physics, University of Gothenburg, 412 96 Gothenburg, Sweden

  5. 5

    Materials Physics, Royal Institute of Technology (KTH), Electrum 229, 164 40 Kista, Sweden

  6. 6

    CIN2(ICN-CSIC) and Universitat Autónoma de Barcelona, Catalan Institute of Nanotechnology (ICN), Campus UAB, 08193 Bellaterra (Barcelona), Spain

  7. 7

    Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain

  8. 8

    IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain

  9. 9

    Neaspec GmbH, Bunsenstrasse 5, 82152 Munich, Germany

*CIC nanoGUNE Consolider, 20018 Donostia-San Sebstián, Spain.

Publication History

  1. Issue published online: 16 AUG 2011
  2. Article first published online: 16 JUN 2011
  3. Manuscript Received: 3 APR 2011

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Keywords:

  • plasmonics;
  • optical antennas;
  • magnetic nanoparticles;
  • near-field optical imaging;
  • scattering-type scanning near-field optical microscopy

Abstract

The fundamental optical properties of pure nickel nanostructures are studied by far-field extinction spectroscopy and optical near-field microscopy, providing direct experimental evidence of the existence of particle plasmon resonances predicted by theory. Experimental and calculated near-field maps allow for unambiguous identification of dipolar plasmon modes. By comparing calculated near-field and far-field spectra, dramatic shifts are found between the near-field and far-field plasmon resonances, which are much stronger than in gold nanoantennas. Based on a simple damped harmonic oscillator model to describe plasmonic resonances, it is possible to explain these shifts as due to plasmon damping.

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