Work

Stealth Acoustic Materials

Year: 2019

Type: article

Abstract: This work establishes a fruitful connection between the fields of ``stealth materials'' in soft matter and acoustics, pushing the field of stealth materials in a more general direction, based on the principles of wave physics. The positions of scatterers in an air-filled acoustic waveguide are chosen such that, in the Born approximation, suppression of scattering over a broad range of frequencies is achieved, and thus broadband transparency. Experimental results are in excellent agreement with theory, despite the presence of losses and the finite size of the system.

Source: Physical Review Applied

DOI: 10.1103/physrevapplied.11.054076

Authors: V. Romero-García, N. Lamothe, G. Theocharis, O. Richoux, L.M. García-Raffi

Institutions: Centre National de la Recherche Scientifique, Le Mans Université, Laboratoire d'Acoustique de l'Université du Mans, Universitat Politècnica de València

Language: English

Topic: Acoustic Wave Phenomena Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: European Cooperation in Science and Technology, Ministerio de Asuntos Económicos y Transformación Digital, Gobierno de España, European Regional Development Fund

Awards: G1429814892, G7052438600