Perfect Resonant Absorption of Guided Water Waves by Autler-Townes Splitting

Leo-Paul Euve, Kim Pham, Richard Porter, Philipe Petitjeans, Pagneux Vincent, Agnes Maurel*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)
12 Downloads (Pure)

Abstract

The control of guided water wave propagation based on the Autler-Townes splitting resonance concept is demonstrated experimentally, numerically, and theoretically. Complete wave absorption is achieved using an asymmetric pointlike scatterer made of two closely spaced resonant side channels connected to a guide and designed so that its energy leakage is in perfect balance with the inherent viscous losses in the system. We demonstrate that the nature of the resonators and guide junction completely controls the positions of the wave numbers at the reflection and transmission zeros on the real axis; the asymmetry of the resonators completely controls their positions on the imaginary axis. Thus, by adjusting these two independent parameters, we obtain a zero reflection and transmission.
Original languageEnglish
Article number204002
Pages (from-to)1-7
Number of pages7
JournalPhysical Review Letters
Volume131
Issue number20
DOIs
Publication statusPublished - 17 Nov 2023

Bibliographical note

Funding Information:
The authors acknowledge the support of the ANR under Grants No. 243560 CoProMM and No. ANR-19-CE08-0006, and of the Agence de l’Innovation de Défense from DGA under Grant No. 2019 65 0070.

Publisher Copyright:
© 2023 American Physical Society.

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