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Communication Dans Un Congrès Année : 2023

Beyond CPA: A General Theory of Reflectionless Scattering

Résumé

Coherent Perfect Absorption is one form of reflectionless scattering, involving transduction of an adapted input field. We present a general theory of reflectionless scattering, which includes CPA, based on choosing a subset of input channels and requiring no backscattering into them. We show that infinitely many such solutions exist at complex frequency, can be calculated efficiently, and can be made accessible via tuning a single structural parameter. Optimization of a parameterized structure can achieve high quality signal routing. © 2023, META Conference. All rights reserved.
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Dates et versions

hal-04282539 , version 1 (13-11-2023)

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  • HAL Id : hal-04282539 , version 1

Citer

A. Douglas Stone, W.R. Sweeney, C.-W. Hsu, A. Alhulaymi, P. del Hougne. Beyond CPA: A General Theory of Reflectionless Scattering. 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023, Jul 2023, Paris, France. pp.649-650. ⟨hal-04282539⟩
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