MATEC Web Conf.
Volume 155, 2018VIII International Scientific and Practical Conference “Information and Measuring Equipment and Technologies“ (IME&T 2017)
|Number of page(s)||6|
|Published online||28 February 2018|
Mesoscale Acoustical Cylindrical Superlens
National Research Tomsk State University, 634050, Tomsk, Russia
a Corresponding author: firstname.lastname@example.org
We demonstrate experimentally for the first time the acoustojet (acoustic jets) formed from acoustic plane wave scattering by a penetrable cylindrical particle with dimensions of several wavelengths. It acts as a superlens with subwavelength localization of acoustical wave. During the scattering by elastic solid particles, additional internal shear waves are excited due to modes conversion. This mechanism allows achieving sharp focusing in the near-field zone. Such mesoscale single particle cylindrical lens may be considered as acoustic metamaterials free superlenses with resolution beyond the diffraction limit.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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