A methodology is presented for applying the optical theorem to enable high-precision measurements of acoustic extinction cross sections for Helmholtz resonators despite finite sources and standing-wave effects.
Power flow–conformal metamirrors for engineering wave reflections
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Optical Theorem for Measuring the Acoustic Extinction Cross Section of Helmholtz Resonators
A methodology is presented for applying the optical theorem to enable high-precision measurements of acoustic extinction cross sections for Helmholtz resonators despite finite sources and standing-wave effects.