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Chiral optical response of planar and symmetric nanotrimers enabled by heteromaterial selection

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  • Peter Banzer

    (Max Planck Institute for the Science of Light, Guenther-Scharowsky-Straße 1, D-91058 Erlangen, Germany
    Institute of Optics, Information and Photonics, University Erlangen-Nuremberg
    University of Ottawa
    Max Planck University of Ottawa Centre for Extreme and Quantum Photonics, University of Ottawa)

  • Paweł Woźniak

    (Max Planck Institute for the Science of Light, Guenther-Scharowsky-Straße 1, D-91058 Erlangen, Germany
    Institute of Optics, Information and Photonics, University Erlangen-Nuremberg
    Max Planck University of Ottawa Centre for Extreme and Quantum Photonics, University of Ottawa)

  • Uwe Mick

    (Max Planck Institute for the Science of Light, Guenther-Scharowsky-Straße 1, D-91058 Erlangen, Germany
    Institute of Optics, Information and Photonics, University Erlangen-Nuremberg
    Max Planck University of Ottawa Centre for Extreme and Quantum Photonics, University of Ottawa)

  • Israel De Leon

    (University of Ottawa
    Max Planck University of Ottawa Centre for Extreme and Quantum Photonics, University of Ottawa
    School of Engineering and Sciences, Tecnológico de Monterrey)

  • Robert W. Boyd

    (University of Ottawa
    Max Planck University of Ottawa Centre for Extreme and Quantum Photonics, University of Ottawa
    Institute of Optics, University of Rochester)

Abstract

Chirality is an intriguing property of certain molecules, materials or artificial nanostructures, which allows them to interact with the spin angular momentum of the impinging light field. Due to their chiral geometry, they can distinguish between left- and right-hand circular polarization states or convert them into each other. Here we introduce an approach towards optical chirality, which is observed in individual two-dimensional and geometrically mirror-symmetric nanostructures. In this scheme, the chiral optical response is induced by the chosen heterogeneous material composition of a particle assembly and the corresponding resonance behaviour of the constituents it is built from, which breaks the symmetry of the system. As a proof of principle, we investigate such a structure composed of individual silicon and gold nanoparticles both experimentally, as well as numerically. Our proposed concept constitutes an approach for designing two-dimensional chiral media tailored at the nanoscale, allowing for high tunability of their optical response.

Suggested Citation

  • Peter Banzer & Paweł Woźniak & Uwe Mick & Israel De Leon & Robert W. Boyd, 2016. "Chiral optical response of planar and symmetric nanotrimers enabled by heteromaterial selection," Nature Communications, Nature, vol. 7(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13117
    DOI: 10.1038/ncomms13117
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    Cited by:

    1. Ufuk Kilic & Matthew Hilfiker & Shawn Wimer & Alexander Ruder & Eva Schubert & Mathias Schubert & Christos Argyropoulos, 2024. "Controlling the broadband enhanced light chirality with L-shaped dielectric metamaterials," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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