Sound focusing of a wavelength-scale gas-filled flat lens; EPL (Europhysics Letters); Vol. 123, iss. 6

Sound focusing of a wavelength-scale gas-filled flat lens

Bibliografiske detaljer
Parent link:	EPL (Europhysics Letters) Vol. 123, iss. 6.— 2018.— [64002, 4 р.]
Institution som forfatter:	Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение электронной инженерии
Andre forfattere:	Rubio C. Constanza, Tarrazo-Serrano D. Daniel, Minin O. V. Oleg Vladilenovich, Uris A. Antonio, Minin I. V. Igor Vladilenovich
Summary:	Title screen The capability of focusing of a novel acoustic lens based on a mesoscale acoustic cuboid particle filled with CO2 gas is analysed. This flat lens is able to focus sound in the same way that conventional curved acoustic lenses do. It is shown that the sound speed inside the cuboid is the responsible for this effect. By changing the percentage of CO2, the sound speed inside the cube changes and, therefore, the focusing properties change as well. The focusing effect is numerically investigated and experimentally validated. The results obtained allow the design of new flat low cost acoustic lenses with wavelength-scale dimensions for different applications. Режим доступа: по договору с организацией-держателем ресурса
Sprog:	engelsk
Udgivet:	2018
Fag:	электронный ресурс труды учёных ТПУ
Online adgang:	https://doi.org/10.1209/0295-5075/123/64002
Format:	Electronisk Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659265

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