Transformation Electromagnetics and Metamaterials : fundamental principles and applications
Transformation Electromagnetics and Metamaterials : fundamental principles and applications
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DOI:
10.1007/978-1-4471-4996-5
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发表时间:
2014-07
期刊:
影响因子:
1.3
通讯作者:
D. Werner;D. Kwon
中科院分区:
文献类型:
--
作者:
D. Werner;D. Kwon
The subject of this book is the newly emerging area of research known as transformation electromagnetics and the associated metamaterials technology for designing and realizing devices that can control the behavior of electromagnetic waves (including light) in ways that have not been conventionally possible. The fundamental principle behind transformation electromagnetics has been known for decades, but it was only recently formalized in 2006 and subsequently established as a powerful design tool for microwave and optical engineers. Combined with the development over the past decade of the state of the art in metamaterials technology, which allows for realizing practical engineered materials having inhomogeneous and anisotropic parameters, transformation electromagnetics provides designers with an unprecedented flexibility in device shapes and functionality. The technique is credited with numerous novel device designs, most notably invisibility cloaks. In this book, a comprehensive treatment has been compiled from a group of leading scholars and researchers throughout the world on the subject, from the fundamental theoretical principles to application examples realized using the state of the art in metamaterials technology, encompassing a wide range of the electromagnetic spectrum.Transformation electromagnetics has led to designs that enable novel wavematerial interaction properties such as invisibility cloaks, flat aberration-free lenses, photonic integrated systems on a chip, low-profile highly directive antennas, and a host of other remarkable devices. On the theoretical side, the following questions will be addressed:‘‘Where does transformation electromagnetics come from?’’,‘‘What are the general material properties derived from different classes of coordinate transformations?’’,‘‘What are the limitations and challenges of device realizations?’’, and ‘‘What theoretical tools are available to make the coordinate transformation-based designs more amenable to fabrication using currently existing technologies?’’The comprehensive theoretical treatment is complemented by a broad range of design examples as well as experimental measurements of fabricated metamaterial-enabled transformation electromagnetics devices in various spectral regimes with applications ranging from radio frequencies, through the terahertz and infrared, to visible wavelengths. The applications encompass invisibility cloaks, gradient-index lenses in the microwave and optical regimes, negative-index superlenses for sub-wavelength resolution focusing, flat lenses that