[图书][B] Acoustics of layered media II: Point sources and bounded beams

LM Brekhovskikh, OA Godin - 2013 - books.google.com
Acoustics of Layered Media II presents the theory of sound propagation and reflection of
spherical waves and bounded beams in layered media. It is mathematically rigorous but at …

Gaussian beam and pulsed-beam dynamics: complex-source and complex-spectrum formulations within and beyond paraxial asymptotics

E Heyman, LB Felsen - JOSA A, 2001 - opg.optica.org
Paraxial Gaussian beams (GB's) are collimated wave objects that have found wide
application in optical system analysis and design. A GB propagates in physical space …

[HTML][HTML] Interaction of three-dimensional acoustic beam with fluid-loaded solid plate: Axial near-to far-field transmission at normal beam incidence

MM Sæther, SH Midtbø, P Lunde - Ultrasonics, 2022 - Elsevier
Axial radiation from leaky Lamb waves propagating in a 6.05 mm water-immersed steel
plate being excited by a sound beam normally incident to the plate, is investigated as a …

Longitudinal and transverse effects of nonspecular reflection

W Nasalski - JOSA A, 1996 - opg.optica.org
A rigorous spectral analysis is given for the nonspecular reflection of a three-dimensional
Gaussian beam at a dielectric isotropic planar structure. For the first time all independent …

Air-coupled ultrasonic estimation of viscoelastic stiffnesses in plates

A Safaeinili, OI Lobkis… - IEEE transactions on …, 1996 - ieeexplore.ieee.org
Materials characterization by means of megahertz air-coupled ultrasound is reported in this
paper. In plates of composite laminates the reconstruction of a function closely related to the …

Deviation of a monochromatic Lamb wave beam in anisotropic multilayered media: Asymptotic analysis, numerical and experimental results

C Potel, S Baly, JF De Belleval, M Lowe… - ieee transactions on …, 2005 - ieeexplore.ieee.org
The aim of this paper is threefold: to describe the physical phenomenon of the excitation of
modal waves such as Lamb waves, in anisotropic multilayered media, by a monochromatic …

A complex-transducer-point model for finite emitting and receiving ultrasonic transducers

S Zeroug, FE Stanke, R Burridge - Wave Motion, 1996 - Elsevier
The complex-source-point (CSP) technique, widely used to generate Gaussian beams out of
real point source fields by displacing the source location into complex space, is here …

Exact complex source representations of time-harmonic radiation

AN Norris, TB Hansen - Wave Motion, 1997 - Elsevier
New exact representations are presented for arbitrary compact source regions using
distributions of sources in complex space. The equivalent sources are located on the …

Beam diffraction effects in the backward wave regions of viscoelastic leaky Lamb modes for plate transmission at normal incidence

M Aanes, KD Lohne, P Lunde… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Plane-wave theory for fluid-embedded isotropic plates is often used in ultrasonic guided-
wave applications, and to estimate wall thickness, corrosion, or sound velocities in plates …

Precision ultrasonic reflection studies in fluid‐coupled plates

OI Lobkis, A Safaeinili, DE Chimenti - The Journal of the Acoustical …, 1996 - pubs.aip.org
An approximate, but highly accurate, analysis is presented for the reflection of bounded
acoustic beams—and their detection by finite receivers—from fluid‐loaded structures …