Ontology highlight
ABSTRACT:
SUBMITTER: Starkey TA
PROVIDER: S-EPMC6823496 | biostudies-literature | 2019 Oct
REPOSITORIES: biostudies-literature
Starkey Timothy A TA Kyrimi Vicky V Ward Gareth P GP Sambles J Roy JR Hibbins Alastair P AP
Scientific reports 20191031 1
The Dirac point and associated linear dispersion exhibited in the band structure of bound (non-radiative) acoustic surface modes supported on a honeycomb array of holes is explored. An aluminium plate with a honeycomb lattice of periodic sub-wavelength perforations is characterised by local pressure field measurements above the sample surface to obtain the full band-structure of bound modes. The local pressure fields of the bound modes at the K and M symmetry points are imaged, and the losses at ...[more]