Acoustic Metamaterials: Negative Refraction, Imaging, by Richard V. Craster, Sébastien Guenneau

By Richard V. Craster, Sébastien Guenneau

About the e-book: This ebook is the 1st entire assessment on acoustic metamaterials; novel fabrics which may manage sound waves in dazzling methods, which come with collimation, focusing, cloaking, sonic screening and awesome transmission. It covers either experimental and theoretical facets of acoustic and elastic waves propagating in based composites, with a spotlight on potent houses linked to unfavourable refraction, lensing and cloaking. such a lot comparable books within the box deal with electromagnetic metamaterials and concentrate on numerical tools, and little (or no) experimental part. each one bankruptcy may be authored by way of an stated specialist, among the themes lined might be experimental effects on non-destructive imaging, cloaking by means of floor water waves, flexural waves in skinny plates. purposes in scientific ultrasound imaging and modeling of metamaterials should be emphasised too. The publication can function a reference for researchers who desire to construct a fantastic starting place of wave propagation during this classification of novel materials.

Show description

Read Online or Download Acoustic Metamaterials: Negative Refraction, Imaging, Lensing and Cloaking PDF

Best imaging systems books

Biometric Inverse Problems

Conventional equipment of biometric research are not able to beat the restrictions of current ways, often as a result of loss of criteria for enter information, privateness issues related to use and garage of exact biometric facts, and unacceptable accuracy. Exploring ideas to inverse difficulties in biometrics transcends such limits and permits wealthy research of biometric info and platforms for better functionality and trying out.

Optical Fiber Communications: Principles and Practice (3rd Edition)

Senior is a longtime center textual content in a box that's growing to be quickly, and in which technology is consistently evolving. The textual content succeeds in giving a realistic creation to the basics, difficulties and methods of layout and utilisation of optical fiber platforms. it really is revered because the so much finished and functional ebook available in the market.

Digital Image Processing: Mathematical and Computational Methods

This authoritative textual content (the moment a part of an entire MSc direction) offers mathematical equipment required to explain pictures, photograph formation and assorted imaging platforms, coupled with the primary suggestions used for processing electronic photographs. it's in accordance with a direction for postgraduates analyzing physics, digital engineering, telecommunications engineering, details expertise and computing device technology.

Holographic and Speckle Interferometry

During this re-creation of Holographic and Speckle Interferometry the authors have taken the chance to extend significantly the cloth on functions and to incorporate a extra coherent description of a much wider diversity of such purposes. This revision displays the fast bring up within the makes use of made up of the fundamental method that has happened over the last few years.

Extra resources for Acoustic Metamaterials: Negative Refraction, Imaging, Lensing and Cloaking

Example text

13 where they describe the scale of the macroscopic obstacle. 79) where the term −β 2 u corresponds to a constant elastic restoring parameter in a Winkler model. This example is instructive as it can be solved exactly, it has a zerofrequency stop band (and so homogenization theory is normally of no use) and one can compare easily to the high frequency homogenization asymptotics: the results are shown in Fig. 24. These ideas carry across to two-dimensions too, for instance a checkerboard medium [8, 9] created from cells repeated to fill the plane.

Wave Motion 48, 525–538 (2011) 37. : Superprism phenomena in photonic crystals. Opt. Quantum Electron. 34, 133 (2002) 38. : Photonic band-gap effects and magnetic activity in dielectric composites. J. Phys. Condens. Matter 14, 4035–4044 (2002) 39. : Negative refraction makes a perfect lens. Phys. Rev. Lett. 85, 3966–3969 (2000) 40. : Negative refraction. Contemp. Phys. 45, 191 (2004) 41. : Extremely low frequency plasmons in metallic mesostructures. Phys. Rev. Lett. 76, 4763 (1996) 42. : Magnetism from conductors and enhanced nonlinear phenomena.

In this case, the spatial period of the crystal is of the same order of magnitude as the acoustic wavelength at the central frequency of the gap and, as a consequence, the lattice constant has generally been the key parameter to scale band gaps. A shortcoming of this principle was identified early in the context of low frequency acoustic applications for sound isolation, as well as earthquake shielding, which has long been regarded as a pernicious form of environmental pollution and a dangerous natural issue.

Download PDF sample

Rated 4.42 of 5 – based on 45 votes