Lattices of Dielectric Resonators

Lattices of Dielectric Resonators
Author: Alexander Trubin
Publisher: Springer
Total Pages: 175
Release: 2015-10-30
Genre: Technology & Engineering
ISBN: 3319251481

This book provides the analytical theory of complex systems composed of a large number of high-Q dielectric resonators. Spherical and cylindrical dielectric resonators with inferior and also whispering gallery oscillations allocated in various lattices are considered. A new approach to S-matrix parameter calculations based on perturbation theory of Maxwell equations, developed for a number of high-Q dielectric bodies, is introduced. All physical relationships are obtained in analytical form and are suitable for further computations. Essential attention is given to a new unified formalism of the description of scattering processes. The general scattering task for coupled eigen oscillations of the whole system of dielectric resonators is described. The equations for the expansion coefficients are explained in an applicable way. The temporal Green functions for the dielectric resonator are presented. The scattering process of short pulses in dielectric filter structures, dielectric antennas and lattices of dielectric resonators is discussed.

Dielectric Resonator Antennas

Dielectric Resonator Antennas
Author: Kwai Man Luk
Publisher: Research Studies Press Limited
Total Pages: 0
Release: 2003
Genre: Antennas
ISBN: 9780863802638

The use of dielectric resonator as a resonant antenna was proposed in 1983. Due to the absence of metallic loss, the dielectric resonator antenna (DRA) is highly efficient when operated at millimetre wave frequencies. With the use of high dielectric constant material, the DRA can also be used as a small and low profile antenna operated at low microwave frequencies. Low cost dielectric materials are now easily available commercially, encouraging more antenna engineers to design communication systems with DRAs.

Dielectric Metamaterials and Metasurfaces in Transformation Optics and Photonics

Dielectric Metamaterials and Metasurfaces in Transformation Optics and Photonics
Author: Elena Semouchkina
Publisher: Woodhead Publishing
Total Pages: 330
Release: 2021-08-06
Genre: Technology & Engineering
ISBN: 0128206217

Dielectric Metamaterials and Metasurfaces in Transformation Optics and Photonics addresses the complexity of electromagnetic responses from arrays of dielectric resonators, which are often omitted from consideration when using simplified metamaterials concepts. The book's authors present a thorough consideration of dielectric resonances in different environments which is needed to design optical and photonic devices. Dielectric metamaterials and photonic crystals are compared, with their effects analyzed. Design approaches and examples of designs for invisibility cloaks based on artificial media are also included. Current challenge of incorporating artificial materials into transformation optics-based and photonics devices are also covered. - Presents advanced concepts of utilizing artificial materials for optical and photonic device applications - Includes design approaches of materials for transformation optics, cloaking, applications and examples of these designs - Compares photonic crystals and metamaterials, their effects, properties and characteristics

Metamaterial

Metamaterial
Author: Xun-Ya Jiang
Publisher: BoD – Books on Demand
Total Pages: 630
Release: 2012-05-16
Genre: Technology & Engineering
ISBN: 9535105914

In-depth analysis of the theory, properties and description of the most potential technological applications of metamaterials for the realization of novel devices such as subwavelength lenses, invisibility cloaks, dipole and reflector antennas, high frequency telecommunications, new designs of bandpass filters, absorbers and concentrators of EM waves etc. In order to create a new devices it is necessary to know the main electrodynamical characteristics of metamaterial structures on the basis of which the device is supposed to be created. The electromagnetic wave scattering surfaces built with metamaterials are primarily based on the ability of metamaterials to control the surrounded electromagnetic fields by varying their permeability and permittivity characteristics. The book covers some solutions for microwave wavelength scales as well as exploitation of nanoscale EM wavelength such as visible specter using recent advances of nanotechnology, for instance in the field of nanowires, nanopolymers, carbon nanotubes and graphene. Metamaterial is suitable for scholars from extremely large scientific domain and therefore given to engineers, scientists, graduates and other interested professionals from photonics to nanoscience and from material science to antenna engineering as a comprehensive reference on this artificial materials of tomorrow.

Theory and Phenomena of Metamaterials

Theory and Phenomena of Metamaterials
Author: Filippo Capolino
Publisher: CRC Press
Total Pages: 974
Release: 2017-12-19
Genre: Technology & Engineering
ISBN: 1420054260

Theory and Phenomena of Metamaterials offers an in-depth look at the theoretical background and basic properties of electromagnetic artificial materials, often called metamaterials. A volume in the Metamaterials Handbook, this book provides a comprehensive guide to working with metamaterials using topics presented in a concise review format along with numerous references. With contributions from leading researchers, this text covers all areas where artificial materials have been developed. Each chapter in the text features a concluding summary as well as various cross references to address a wide range of disciplines in a single volume.

Functional Dielectrics for Electronics

Functional Dielectrics for Electronics
Author: Yuriy Poplavko
Publisher: Woodhead Publishing
Total Pages: 314
Release: 2020-01-29
Genre: Technology & Engineering
ISBN: 0128188367

Functional Dielectrics for Electronics: Fundamentals of Conversion Properties presents an overview of the nature of electrical polarization, dielectric nonlinearity, electrical charge transfer mechanisms, thermal properties, the nature of high permittivity, low-loss thermostability and other functional dielectrics. The book describes the intrinsic mechanisms of electrical polarization and the energy transformations in non-centrosymmetric crystals that are responsible for converting thermal, mechanical, optical and other impacts into electrical signals. In addition, the book reviews the main physical processes that provide electrical, mechanoelectrical, thermoelectrical and other conversion phenomena in polar crystals. Detailed descriptions are given to electrical manifestations of polar-sensitivity in the crystals, the interaction of polarization with conductivity, the anomalies in thermal expansion coefficient and main peculiarities of heat transfer in polar-sensitive crystals. - Provides readers with a fundamental understanding of polar dielectric materials and their physical processes - Includes different models of polar sensitivity and experimental confirmation of these models - Discusses thermal expansion, heat transfer, dielectric nonlinearity and other important aspects for electronics applications

Confined Electrons and Photons

Confined Electrons and Photons
Author: Elias Burstein
Publisher: Springer Science & Business Media
Total Pages: 900
Release: 2012-12-06
Genre: Science
ISBN: 1461519632

The optical properties of semiconductors have played an important role since the identification of semiconductors as "small" bandgap materials in the thinies, due both to their fundamental interest as a class of solids baving specific optical propenies and to their many important applications. On the former aspect we can cite the fundamental edge absorption and its assignment to direct or indirect transitions, many-body effects as revealed by exciton formation and photoconductivity. On the latter aspect, large-scale applications sucb as LEDs and lasers, photovoltaic converters, photodetectors, electro-optics and non-linear optic devices, come to mind. The eighties saw a revitalization of the whole field due to the advent of heterostructures of lower-dimensionality, mainly two-dimensional quantum wells, which through their enhanced photon-matter interaction yielded new devices with unsurpassed performance. Although many of the basic phenomena were evidenced through the seventies, it was this impact on applications which in turn led to such a massive investment in fabrication tools, thanks to which many new structures and materials were studied, yielding funher advances in fundamental physics.

Selected Topics In Photonic Crystals And Metamaterials

Selected Topics In Photonic Crystals And Metamaterials
Author: Antonello Andreone
Publisher: World Scientific
Total Pages: 550
Release: 2011-06-08
Genre: Science
ISBN: 9814458643

This volume focuses on a research field that has emerged in the last decade as one of the most promising and rapidly advancing. The interest towards photonic crystals and metamaterials and their strategic importance are evident in the steadily growing rate of topical publications, the recent creation of topical journals, conferences and workshops promoted by several scientific societies, the research efforts at international level, and the number of proposed novel applications based on them.The various contributions, by renowned scientists from academia and industry, address wide-ranging topics, including aspects pertaining to modeling, phenomenologies, experiments, technologies and applications.