TY - JOUR
T1 - Angular spectrum method for acoustic beam in anisotropic media and structures
AU - Xu, Wei Jiang
AU - Zhang, Jin Ying
AU - Wu, Xian Mei
AU - Cheng, Qian
AU - Dupont, Samul
N1 - Publisher Copyright:
© 2024 Institute of Physics Publishing. All rights reserved.
PY - 2024
Y1 - 2024
N2 - The Angular Spectrum (AS) method is commonly used to calculate the propagation of scalar wave fields.This study extends the application of AS to vector wave propagation, specifically addressing acoustic waves in anisotropic media.The approach involves using plane wave spectra to express all possible mode waves, namely one q-P wave and two q-S waves, that propagate in various directions in the medium.These AS are determined by applying boundary conditions at the source surface where the vector waves are generated and the modes waves are coupled.AS decomposition of waves requires the determination of complex wavenumber vectors (or slownesses) through the Christoffel equation, including both propagating and evanescent waves.The determination of the acoustic beam profile in TeO2 crystals is presented as an application example of AS.
AB - The Angular Spectrum (AS) method is commonly used to calculate the propagation of scalar wave fields.This study extends the application of AS to vector wave propagation, specifically addressing acoustic waves in anisotropic media.The approach involves using plane wave spectra to express all possible mode waves, namely one q-P wave and two q-S waves, that propagate in various directions in the medium.These AS are determined by applying boundary conditions at the source surface where the vector waves are generated and the modes waves are coupled.AS decomposition of waves requires the determination of complex wavenumber vectors (or slownesses) through the Christoffel equation, including both propagating and evanescent waves.The determination of the acoustic beam profile in TeO2 crystals is presented as an application example of AS.
UR - http://www.scopus.com/inward/record.url?scp=85208414200&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/2822/1/012156
DO - 10.1088/1742-6596/2822/1/012156
M3 - Conference article
AN - SCOPUS:85208414200
SN - 1742-6588
VL - 2822
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012156
T2 - 2023 International Congress on Ultrasonics, ICU Beijing 2023
Y2 - 18 September 2023 through 21 September 2023
ER -