Nonlinear phononics using atomically thin membranes
Journal article, 2014

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.

Author

Daniel Midtvedt

Chalmers, Applied Physics, Condensed Matter Theory

Andreas Isacsson

Chalmers, Applied Physics, Condensed Matter Theory

Alexander Croy

Chalmers, Applied Physics, Condensed Matter Theory

Nature Communications

2041-1723 (ISSN)

Vol. 5 Article No. 4838 -

Graphene-Based Revolutions in ICT And Beyond (Graphene Flagship)

European Commission (FP7), 2013-10-01 -- 2016-03-31.

Subject Categories

Other Engineering and Technologies

Condensed Matter Physics

DOI

10.1038/ncomms5838

More information

Created

10/7/2017