Electromechanically tunable carbon nanofiber photonic crystal

R. Rehammar, Farzan Ghavanini, R. Magnusson, Jari Kinaret, Peter Enoksson, Hans Arwin, Eleanor E.B. Campbell

Research output: Contribution to journalLetterpeer-review

Abstract / Description of output

We demonstrate an electrically tunable 2D photonic crystal array constructed from vertically aligned carbon nanofibers. The nanofibers are actuated by applying a voltage between adjacent carbon nanofiber pairs grown directly on metal electrodes, thus dynamically changing the form factor of the photonic crystal lattice. The change in optical properties is characterised using optical diffraction and ellipsometry. The experimental results are shown to be in agreement with theoretical predictions and provide a proof-of-principle for rapidly switchable photonic crystals operating in the visible that can be fabricated using standard nanolithography techniques combined with plasma CVD growth of the nanofibers.
Original languageEnglish
Pages (from-to)397-401
Number of pages5
JournalNano Letters
Issue number2
Early online date31 Dec 2012
Publication statusPublished - Feb 2013

Keywords / Materials (for Non-textual outputs)

  • carbon nanofiber
  • nanoelectromechanics
  • diffraction
  • ellipsometry
  • form factor
  • tunable photonic crystal


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