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- W4288335655 abstract "In this work, we report the observation of a new type of near-field curved acoustic beam different from the Airy-family beams both through simulations and experiment. This new self-bending acoustical beam is generate from a rectangular trapezoid of a polymer material immersed in water and has unique features. The radius of curvature of acoustical hook is less than the wavelength, it is represents the smallest radius of curvature ever recorded for any acoustical beams. The origin of this curved beam is in the vortices of intensity flow that appear inside the solid due to the conversion of the incident longitudinal wave mode to a shear wave in a solid. These vortices redirect the intensity flow, which causes the beam to bend. These results may be potentially useful when an object, that is in the path of the beam, must be avoid, such as in cancer treatments in which tumors are found behind bones such as ribs. It could also have potential applications in particle manipulations." @default.
- W4288335655 created "2022-07-29" @default.
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- W4288335655 date "2019-06-05" @default.
- W4288335655 modified "2023-10-14" @default.
- W4288335655 title "Acoustical hooks: a new subwavelength self-bending beam" @default.
- W4288335655 doi "https://doi.org/10.48550/arxiv.1906.02148" @default.
- W4288335655 hasPublicationYear "2019" @default.
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