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Monodisperse silicon nanocavities and photonic crystals with magnetic response in the optical region

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  • Lei Shi

    (Centro de Tecnologias Fisicas, Unidad Asociada ICMM/CSIC-UPV, Universidad Politecnica de Valencia
    Instituto de Ciencia de Materiales de Madrid CSIC)

  • Justin T Harris

    (Texas Materials Institute, Center for Nano- and Molecular Science and Technology, The University of Texas at Austin)

  • Roberto Fenollosa

    (Centro de Tecnologias Fisicas, Unidad Asociada ICMM/CSIC-UPV, Universidad Politecnica de Valencia
    Instituto de Ciencia de Materiales de Madrid CSIC)

  • Isabelle Rodriguez

    (Centro de Tecnologias Fisicas, Unidad Asociada ICMM/CSIC-UPV, Universidad Politecnica de Valencia
    Instituto de Ciencia de Materiales de Madrid CSIC)

  • Xiaotang Lu

    (Texas Materials Institute, Center for Nano- and Molecular Science and Technology, The University of Texas at Austin)

  • Brian A Korgel

    (Texas Materials Institute, Center for Nano- and Molecular Science and Technology, The University of Texas at Austin)

  • Francisco Meseguer

    (Centro de Tecnologias Fisicas, Unidad Asociada ICMM/CSIC-UPV, Universidad Politecnica de Valencia
    Instituto de Ciencia de Materiales de Madrid CSIC)

Abstract

It is generally accepted that the magnetic component of light has a minor role in the light–matter interaction. The recent discovery of metamaterials has broken this traditional understanding, as both the electric and the magnetic field are key ingredients in metamaterials. The top–down technology used so far employs noble metals with large intrinsic losses. Here we report on a bottom–up approach for processing metamaterials based on suspensions of monodisperse full dielectric silicon nanocavities with a large magnetic response in the near-infrared region. Experimental results and theory show that silicon-colloid-based liquid suspensions and photonic crystals made of two-dimensional arrays of particles have strong magnetic response in the near-infrared region with small optical losses. Our findings might have important implications in the bottom–up processing of large-area low-loss metamaterials working in the near-infrared region.

Suggested Citation

  • Lei Shi & Justin T Harris & Roberto Fenollosa & Isabelle Rodriguez & Xiaotang Lu & Brian A Korgel & Francisco Meseguer, 2013. "Monodisperse silicon nanocavities and photonic crystals with magnetic response in the optical region," Nature Communications, Nature, vol. 4(1), pages 1-7, October.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2934
    DOI: 10.1038/ncomms2934
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