Switchable Bidirectional Sound Absorption Via Exceptional Point Modulation in Acoustic Metastructures with Interleaved Resonator Coupling (Adv. Sci. 44/2025)
Zichao Guo, Liangfen Du, Z. Yang, Kexin Zeng, Ziping Lei, Zhonggang Wang, Zhendong Li, Zheng Fan
Abstract
Physics-Driven Acoustic Metastructure In their Research Article (DOI: 10.1002/advs.202508951), Zhonggang Wang, Zhendong Li, Zheng Fan, and co-workers present a physics-driven acoustic metastructure that employs exceptional point modulation and interleaved resonator coupling to achieve switchable bidirectional sound absorption. The cover image illustrates its compact deep-subwavelength design, offering promising opportunities for tunable applications in advanced materials and noise-control engineering.
Topics & Concepts
ResonatorMaterials scienceCoupling (piping)Modulation (music)OptoelectronicsAbsorption (acoustics)Point (geometry)OpticsAcousticsSound (geography)Acoustic waveFrequency modulationFocal pointAmplitude modulationPoint-to-pointPhase modulationAcoustic Wave Phenomena ResearchMetamaterials and Metasurfaces ApplicationsUltrasonics and Acoustic Wave Propagation