High-order Acoustic Bessel Beam Generation by Spiral Gratings - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Physics Procedia Année : 2015

High-order Acoustic Bessel Beam Generation by Spiral Gratings

(1) , (1) , (1) , (2) , (3) , (4)
1
2
3
4

Résumé

We report first-order Bessel beam formation by means of a novel passive acoustic device. The scattering of plane waves by a spiral grating leads to the creation of an acoustic vortex with a pressure null on-axis. Numerical simulations and experimental results report the formation of an acoustic vortex in the near field as the phase presents a screw dislocation and the field is null at the axis. The control of the vorticity and the characteristics of Bessel beams are useful for potential applications on low-cost acoustic tweezers and acoustic radiation force applications.

Dates et versions

hal-02513989 , version 1 (21-03-2020)

Identifiants

Citer

Noé Jiménez, Victor Sanchez-Morcillo, Ruben Pico, Lluis Miquel Garcia-Raffi, V. Romero-Garcia, et al.. High-order Acoustic Bessel Beam Generation by Spiral Gratings. ICU 2015 International Congress on Ultrasonics, May 2015, Metz, France. pp.245-248, ⟨10.1016/j.phpro.2015.08.146⟩. ⟨hal-02513989⟩
26 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More