Acoustic scattering and failure of the optical theorem

被引：0

作者：

Martin, P.A. ^{[1
]}

机构：

[1] Department of Applied Mathematics and Statistics, Colorado School of Mines, Golden,CO,80401, United States

来源：

Journal of the Acoustical Society of America | 2024年 / 156卷 / 05期

关键词：

Forward scattering;

D O I：

10.1121/10.0034427

中图分类号：

学科分类号：

摘要：

For plane wave scattering by an obstacle, the optical theorem relates the scattering cross section to the far-field scattered field in the forward direction. This simple and useful result fails to hold when the incident field is not a plane wave. Failures of this kind are explored. For scattering by a sphere, an explicit formula for the scattering cross section is obtained, applicable to arbitrary incident fields. © 2024 Acoustical Society of America.

引用

页码：3496 / 3501

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