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Published on: May 9, 2021
Physical-optics approximation of near-critical-angle scattering by spheroidal bubbles
Fabrice R A Onofri1, Stefan Radev, Matthias Sentis
1CNRS, Aix-Marseille Université, IUSTI UMR 7343, Technopôle Château Gombert, Marseille 13453, France. fabrice.onofri@polytech.univ‑mrs.fr
Abstract:
A first-order approximation is derived for the near-critical-angle scattering of a large spheroidal bubble illuminated by a plane wave propagating along the bubble axis of symmetry. The intensity of the far-field scattering pattern is expressed as a function of the relative refractive index and the two radii of curvature of the spheroidal bubble at the critical impact point.
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