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Nonlinear phononics using atomically thin membranes

Author

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  • Daniel Midtvedt

    (Chalmers University of Technology
    Present address: Max Planck Institute for the Physics of Complex Systems, Nothnitzer Str. 38, 01187 Dresden, Germany.)

  • Andreas Isacsson

    (Chalmers University of Technology)

  • Alexander Croy

    (Chalmers University of Technology
    Present address: Max Planck Institute for the Physics of Complex Systems, Nothnitzer Str. 38, 01187 Dresden, Germany.)

Abstract

Phononic crystals and acoustic metamaterials are used to tailor phonon and sound propagation properties by utilizing artificial, periodic structures. Analogous to photonic crystals, phononic band gaps can be created, which influence wave propagation and, more generally, allow engineering of the acoustic properties of a system. Beyond that, nonlinear phenomena in periodic structures have been extensively studied in photonic crystals and atomic Bose–Einstein condensates in optical lattices. However, creating nonlinear phononic crystals or nonlinear acoustic metamaterials remains challenging and only few examples have been demonstrated. Here, we show that atomically thin and periodically pinned membranes support coupled localized modes with nonlinear dynamics. The proposed system provides a platform for investigating nonlinear phononics.

Suggested Citation

  • Daniel Midtvedt & Andreas Isacsson & Alexander Croy, 2014. "Nonlinear phononics using atomically thin membranes," Nature Communications, Nature, vol. 5(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5838
    DOI: 10.1038/ncomms5838
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