Ontology highlight
ABSTRACT:
SUBMITTER: Ma C
PROVIDER: S-EPMC6331623 | biostudies-literature | 2019 Jan
REPOSITORIES: biostudies-literature
Nature communications 20190114 1
The resolution of acoustic imaging suffers from diffraction limit due to the loss of evanescent field that carries subwavelength information. Most of the current methods for overcoming the diffraction limit in acoustics still operate in the near-field of the object. Here we demonstrate the design and experimental realization of an acoustic far-field subwavelength imaging system. Our system is based on wave vector filtering and conversion with a transmitter at the near-field and a spatially symme ...[more]