Acoustic transparency in two-dimensional sonic crystals

Details Acoustic transparency in two-dimensional sonic crystals Acoustic transparency in two-dimensional sonic crystals

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11a3039s&link_type=abstract

New Journal of Physics, Volume 11, Issue 1, pp. 013039 (2009).

Physics

1

Scientific paper

Acoustic transparency is studied in two-dimensional sonic crystals consisting of hexagonal distributions of cylinders with continuously varying properties. The transparency condition is achieved by selectively closing the acoustic bandgaps, which are governed by the structure factor of the cylindrical scatterers. It is shown here that cylindrical scatterers with the proposed continuously varying properties are physically realizable by using metafluids based on sonic crystals. The feasibility of this proposal is analyzed by a numerical experiment based on multiple scattering theory.

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