Titlebook: Acoustic Metamaterials; Absorption, Cloaking Richard Craster,Sébastien Guenneau Book 2024Latest edition Springer Nature Switzerland AG 2024

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Cloaking Liquid Surface Waves and Plasmon Polaritons,r to control their trajectories using geometric transforms. These two routes towards cloaking are emerging areas of physics known as transformational acoustics and plasmonics. We first analyze cloaking of LSWs propagating through a circular cloak, which consists of concentric layers cut into a large

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Transformation Elastodynamics and Active Exterior Acoustic Cloaking,rdinate transformations to manipulate waves propagating in an elastic material. Then we study the effect of transformations on a mass-spring network model. The transformed networks can be realized with “torque springs”, which are introduced here and are springs with a force proportional to the displ

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,Acoustic Metamaterials for Sub-wavelength, Broadband, and Perfect Absorption in Ventilated Problemsoblems, i.e., accounting for both reflected and transmitted waves. We discuss the problem of perfect acoustic absorption both in the reflection and ventilated problems reviewing the different acoustic metamaterials described in the literature to achieve these two goals. The general one-dimensional r

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Phononic Subsurfaces: Phononic Crystals and Metamaterials for Passive Flow Control,low. This is enabled by attaching a finite phononic structure perpendicular to an elastic surface exposed to a flowing fluid. This structure, called a . (PSub), experiences ongoing excitation by an unstable flow mode, or more than one mode, travelling in conjunction with the mean flow. The excitatio

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Waves Over a Periodic Progressive Modulation: A , Tutorial,on one-dimensional spring-mass chains whose properties are modulated in space and time in a periodic progressive fashion. The chapter is written for the uninitiated newcomer as well as for the theoretically inclined numerical empiricist. Thus, whenever possible, deployed theory is motivated and expl

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Umsetzung digitaler Geschäftsmodelle show how anisotropic metamaterials can be constructed to control the constitutive parameters of the effective medium through positioning hard plates in different preferred directions. We will then use them to construct an acoustic carpet cloak, an acoustic hyperlens and a superlens as examples.