Collective dynamics of strain-coupled nanomechanical pillar resonators.

Abstract:

:Semiconductur nano- and micropillars represent a promising platform for hybrid nanodevices. Their ability to couple to a broad variety of nanomechanical, acoustic, charge, spin, excitonic, polaritonic, or electromagnetic excitations is utilized in fields as diverse as force sensing or optoelectronics. In order to fully exploit the potential of these versatile systems e.g. for metamaterials, synchronization or topologically protected devices an intrinsic coupling mechanism between individual pillars needs to be established. This can be accomplished by taking advantage of the strain field induced by the flexural modes of the pillars. Here, we demonstrate strain-induced, strong coupling between two adjacent nanomechanical pillar resonators. Both mode hybridization and the formation of an avoided level crossing in the response of the nanopillar pair are experimentally observed. The described coupling mechanism is readily scalable, enabling hybrid nanomechanical resonator networks for the investigation of a broad range of collective dynamical phenomena.

journal_name

Nat Commun

journal_title

Nature communications

authors

Doster J,Hoenl S,Lorenz H,Paulitschke P,Weig EM

doi

10.1038/s41467-019-13309-9

subject

Has Abstract

pub_date

2019-11-20 00:00:00

pages

5246

issue

1

issn

2041-1723

pii

10.1038/s41467-019-13309-9

journal_volume

10

pub_type

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