NDLI: Cloaking and Transformation Media

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Cloaking and Transformation Media

Content Provider	Scilit
Author	Leonhardt, Ulf Philbin, Thomas G.
Copyright Year	2017
Description	Metamaterials are beginning to transform optics and microwave technology, thanks to their versatile properties that, in many cases, can be tailored according to practical needs and desires [1–8]. Although metamaterials are surely not the answer to all engineering problems, they have inspired a series of significant technological developments and also some imaginative research, because they invite researchers and inventors to dream. Imagine there were no practical limits on the electromagnetic properties of materials. What is possible? And what is not? If there are no practical limits, what are the fundamental limits? Such questions inspire taking a fresh look at the foundations of optics [9] and at connections between optics and other areas of physics. In this chapter, we discuss such a connection, the relationship between optics and general relativity, or, expressed more precisely, between geometrical ideas normally applied in general relativity and the propagation of light, or electromagnetic waves in general, in materials [10]. Farfetched as it may appear, general relativity turns out [10] to have been put to practical use in the first working prototype of an electromagnetic cloaking device [11], it gives perhaps the most elegant approach to achieving invisibility [12,13], and [10] general relativity even works behind the scenes of perfect lenses [14,15]. Book Name: Applications of Metamaterials
Related Links	https://content.taylorfrancis.com/books/download?dac=C2009-0-01875-1&isbn=9781315219387&doi=10.1201/9781420054248-6&format=pdf
DOI	10.1201/9781420054248-6
Language	English
Publisher	Informa UK Limited
Publisher Date	2017-12-19
Access Restriction	Open
Subject Keyword	Book Name: Applications of Metamaterials History and Philosophy of Science Transformation Metamaterials Optics Cloaking Electromagnetic General Relativity Inspire Imagine No Practical
Content Type	Text
Resource Type	Chapter

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