Acoustical hooks: A new subwavelength self-bending beam; Results in Physics; Vol. 16

Acoustical hooks: A new subwavelength self-bending beam; Results in Physics; Vol. 16

Podrobná bibliografie
Parent link:	Results in Physics Vol. 16.— 2020.— [102921, 5 p.]
Korporativní autor:	Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение электронной инженерии
Další autoři:	Rubio C. Constanza, Tarrazo-Serrano D. Daniel, Minin O. V. Oleg Vladilenovich, Uris A. Antonio, Minin I. V. Igor Vladilenovich
Shrnutí:	Title screen In this work, we report the first experimental observation of a new type of near-field curved acoustic beam confirmed by simulations. This new curved acoustical beam is generated by asymmetric distribution of the vortices in a polymer Janus particle (particle with broken symmetry) immersed in water. The origin of the vortices is in the conversion of an incident longitudinal wave mode to a shear wave in a solid and then back to a longitudinal wave in the water and has unique features, the radius of curvature of acoustical hook is less than the wavelength. Indeed, it is the smallest radius of curvature ever recorded for any acoustical beams. These results may be potentially useful when an object, located in the path of the beam, must be avoided. It could also have potential applications in particle manipulations.
Jazyk:	angličtina
Vydáno:	2020
Témata:	электронный ресурс труды учёных ТПУ ultrasound focusing acoustic bending beam near field focusing фокусировка ультразвук акустическое излучение
On-line přístup:	https://doi.org/10.1016/j.rinp.2019.102921
Médium:	MixedMaterials Elektronický zdroj Kapitola
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662122

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