Ontology highlight
ABSTRACT:
SUBMITTER: Park CM
PROVIDER: S-EPMC7643133 | biostudies-literature | 2020 Nov
REPOSITORIES: biostudies-literature
Park Choon Mahn CM Yim Geo-Su GS Cho Kyuman K Lee Sang Hun SH
Scientific reports 20201104 1
A two-dimensional (2D) slice of a 3D hemispherical acoustic Luneburg lens using a quasi-conformal transformation and face-centred-orifice-cubic (FCOC) unit cells is designed and fabricated. With the system, the focusing characteristics of acoustic waves with frequencies that satisfy the homogeneous medium condition of the metamaterial are observed, such as focusing of acoustic plane waves at the antipodal point on the transformed surface of the opposite side for the incident direction and focus ...[more]