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Metamaterials: Beyond Crystals, Noncrystals, and Quasicrystals is a
comprehensive and updated research monograph that focuses on recent
advances in metamaterials based on the effective medium theory in
microwave frequencies. Most of these procedures were conducted in
the State Key Laboratory of Millimeter Waves, Southeast University,
China. The book conveys the essential concept of metamaterials from
the microcosmic structure to the macroscopic electromagnetic
properties and helps readers quickly obtain needed skills in
creating new devices at microwave frequencies using metamaterials.
The authors present the latest progress on metamaterials and
transformation optics and provide abundant examples of
metamaterial-based devices accompanied with detailed procedures to
simulate, fabricate, and measure them. Comprised of ten chapters,
the book comprehensively covers both the fundamentals and the
applications of metamaterials. Along with an introduction to the
subject, the first three chapters discuss effective medium theory
and artificial particles. The next three chapters cover homogeneous
metamaterials (super crystals), random metamaterials (super
noncrystals), and inhomogeneous metamaterials (super
quasicrystals). The final four chapters examine gradient-index
inhomogeneous metamaterials, nearly isotropic inhomogeneous
metamaterials, and anisotropic inhomogeneous metamaterials, after
which the authors provide their conclusions and closing remarks.
The book is completely self-contained, making it easy to follow.
Metamaterials: Theory, Design, and Applications goes beyond
left-handed materials (LHM) or negative index materials (NIM) and
focuses on recent research activity. Included here is an
introduction to optical transformation theory, revealing invisible
cloaks, EM concentrators, beam splitters, and new-type antennas, a
presentation of general theory on artificial metamaterials composed
of periodic structures, coverage of a new rapid design method for
inhomogeneous metamaterials, which makes it easier to design a
cloak, and new developments including but not limited to
experimental verification of invisible cloaks, FDTD simulations of
invisible cloaks, the microwave and RF applications of
metamaterials, sub-wavelength imaging using anisotropic
metamaterials, dynamical metamaterial systems, photonic
metamaterials, and magnetic plasmon effects of metamaterials.
Electromagnetic imaging has been a powerful technique in various
civil and military applications across medical imaging, geophysics,
and space exploration. The Nyquist-Shannon theory has formed the
basis for processing the signals in such systems. The advent of
Compressive Sensing techniques has enabled
low-dimension-model-based techniques to be used to break many of
the bottlenecks of the earlier technologies.
Low-dimensional-model-based electromagnetic imaging remains at its
early stage, and many important issues relevant to practical
applications need to be carefully investigated. In particular, this
is the era of big data with booming electromagnetic sensing, by
which massive data are being collected for retrieving very detailed
information of probed objects. This monograph gives an overview of
the low-dimensional models of structure signals, along with its
relevant theories and low-complexity algorithms of signal recovery.
It further reviews the recent advancements of
low-dimensional-model-based electromagnetic imaging in various
applied areas. It is a comprehensive introduction for researchers
and engineers wishing to understand the state-of-the-art of
electromagnetic imaging.
Metamaterials, including their two-dimensional counterparts, are
composed of subwavelength-scale artificial particles. These
materials have novel electromagnetic properties, and can be
artificially tailored for various applications. Based on
metamaterials and metasurfaces, many abnormal physical phenomena
have been realized, such as negative refraction, invisible
cloaking, abnormal reflection and focusing, and many new functions
and devices have been developed. The effective medium theory lays
the foundation for design and application of metamaterials and
metasurfaces, connecting metamaterials with real world
applications. In this Element, the authors combine these essential
ingredients, and aim to make this Element an access point to this
field. To this end, they review classical theories for dielectric
functions, effective medium theory, and effective parameter
extraction of metamaterials, also introducing front edge
technologies like metasurfaces with theories, methods, and
potential applications. Energy densities are also included.
Metamaterials have attracted enormous interests from both physics
and engineering communities in the past 20 years, owing to their
powerful ability in manipulating electromagnetic waves. However,
the functionalities of traditional metamaterials are fixed at the
time of fabrication. To control the EM waves dynamically, active
components are introduced to the meta-atoms, yielding active
metamaterials. Recently, a special kind of active metamaterials,
digital coding and programmable metamaterials, are proposed, which
can achieve dynamically controllable functionalities using field
programmable gate array (FPGA). Most importantly, the digital
coding representations of metamaterials set up a bridge between the
digital world and physical world, and allow metamaterials to
process digital information directly, leading to information
metamaterials. In this Element, we review the evolution of
information metamaterials, mainly focusing on their basic concepts,
design principles, fabrication techniques, experimental measurement
and potential applications. Future developments of information
metamaterials are also envisioned.
Metamaterials: Beyond Crystals, Noncrystals, and Quasicrystals is a
comprehensive and updated research monograph that focuses on recent
advances in metamaterials based on the effective medium theory in
microwave frequencies. Most of these procedures were conducted in
the State Key Laboratory of Millimeter Waves, Southeast University,
China. The book conveys the essential concept of metamaterials from
the microcosmic structure to the macroscopic electromagnetic
properties and helps readers quickly obtain needed skills in
creating new devices at microwave frequencies using metamaterials.
The authors present the latest progress on metamaterials and
transformation optics and provide abundant examples of
metamaterial-based devices accompanied with detailed procedures to
simulate, fabricate, and measure them. Comprised of ten chapters,
the book comprehensively covers both the fundamentals and the
applications of metamaterials. Along with an introduction to the
subject, the first three chapters discuss effective medium theory
and artificial particles. The next three chapters cover homogeneous
metamaterials (super crystals), random metamaterials (super
noncrystals), and inhomogeneous metamaterials (super
quasicrystals). The final four chapters examine gradient-index
inhomogeneous metamaterials, nearly isotropic inhomogeneous
metamaterials, and anisotropic inhomogeneous metamaterials, after
which the authors provide their conclusions and closing remarks.
The book is completely self-contained, making it easy to follow.
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