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Author: Sanghoon Kim Publisher: ISBN: Category : Languages : en Pages : 116
Book Description
Nonlinear active metamaterial surfaces are constructed of planar periodic engineered structures in the sub-wavelength (lambda/4) scale on which the nonlinear circuit components have been populated. Unusual electromagnetic properties of the metamaterials derived by the resonant behavior of the constitutive unit cells have produced remarkable effects such as negative index of refraction, cloaking, and an electromagnetic band gap due to high impedance, while the implementations are restricted in bandwidth and polarization. The added nonlinearity from the nonlinear components can give the degree of freedom to achieve the unique and useful functionalities which could not be realized with linear and passive metamaterials. This thesis studies the theory, characterization, and capability of nonlinear active metasurfaces. The primary application of the invented metasurfaces is focused on exploring a new type of microwave absorbing structure, and the other unique electromagnetic properties. The state-of-the-art nonlinear circuits deployed on the metasurface offer the adaptive capabilities to tune the inherited electromagnetic properties. First, the theoretical limitations of the linear lossy coating are addressed to establish the necessity for the need for advanced absorbing structures. Subsequent chapters introduce the invented nonlinear metasurfaces with the different tunabilities, specifically the switchable metasurfaces that selectively absorb high power signals to avoid destructive interference to sensitive electronic devices. The self-tuning metasurfaces adaptively tune the resonance frequencies to match the frequencies of the incident waves for broadband absorbing bandwidth. The reconfigurable impedance surface has octave tunability maintaining the artificial magnetic conductor property to support an extreme broadband antenna system, and the omni-directional metamaterial surface to response all-directional incoming waves to minimize unexpected scattering effects in oblique angles.
Author: Sanghoon Kim Publisher: ISBN: Category : Languages : en Pages : 116
Book Description
Nonlinear active metamaterial surfaces are constructed of planar periodic engineered structures in the sub-wavelength (lambda/4) scale on which the nonlinear circuit components have been populated. Unusual electromagnetic properties of the metamaterials derived by the resonant behavior of the constitutive unit cells have produced remarkable effects such as negative index of refraction, cloaking, and an electromagnetic band gap due to high impedance, while the implementations are restricted in bandwidth and polarization. The added nonlinearity from the nonlinear components can give the degree of freedom to achieve the unique and useful functionalities which could not be realized with linear and passive metamaterials. This thesis studies the theory, characterization, and capability of nonlinear active metasurfaces. The primary application of the invented metasurfaces is focused on exploring a new type of microwave absorbing structure, and the other unique electromagnetic properties. The state-of-the-art nonlinear circuits deployed on the metasurface offer the adaptive capabilities to tune the inherited electromagnetic properties. First, the theoretical limitations of the linear lossy coating are addressed to establish the necessity for the need for advanced absorbing structures. Subsequent chapters introduce the invented nonlinear metasurfaces with the different tunabilities, specifically the switchable metasurfaces that selectively absorb high power signals to avoid destructive interference to sensitive electronic devices. The self-tuning metasurfaces adaptively tune the resonance frequencies to match the frequencies of the incident waves for broadband absorbing bandwidth. The reconfigurable impedance surface has octave tunability maintaining the artificial magnetic conductor property to support an extreme broadband antenna system, and the omni-directional metamaterial surface to response all-directional incoming waves to minimize unexpected scattering effects in oblique angles.
Author: Ilya V. Shadrivov Publisher: Springer ISBN: 3319083864 Category : Technology & Engineering Languages : en Pages : 333
Book Description
Metamaterials, artificial electromagnetic media achieved by structuring on the subwave-length-scale were initially suggested for the negative index and superlensing. They became a paradigm for engineering electromagnetic space and controlling propagation of waves. The research agenda is now shifting on achieving tuneable, switchable, nonlinear and sensing functionalities. The time has come to talk about the emerging research field of metadevices employing active and tunable metamaterials with unique functionalities achieved by structuring of functional matter on the subwave-length scale. This book presents the first systematic and comprehensive summary of the reviews written by the pioneers and top-class experts in the field of metamaterials. It addresses many grand challenges of the cutting edge research for creating smaller and more efficient photonic structures and devices.
Author: Pai-Yen Chen Publisher: ISBN: Category : Languages : en Pages : 324
Book Description
Metamaterials have experienced a rapid growth of interest over the past few years and new capabilities are being explored to broaden the range of their unique electromagnetic properties for functional devices, including tunable, switchable, and nonlinear properties. In the future, there is the prospect of opening even more exciting applications with metamaterials, not yet imagined and thought not to be possible with currently available techniques. In my dissertation, I discuss several solutions for passive and active metamaterials and metasurfaces, with a particular focus on their potential applications, enabling a new class of metamaterials in the spectral range from radio frequencies (RF) and microwaves, terahertz (THz) to visible light. First, I demonstrate that by loading plasmonic nanoantennas with nonlinear nanoparticles, the nonlinear optical processes, such as multiple wave mixing, high harmonic generation, phase conjugation and optical bistability may be realized at the nanoscale, thanks to the strongly enhanced optical near fields accompanied with the plasmonic resonance. I present here the design, practical realization, and homogenization theory of nonlinear optical metamaterials and metasurfaces formed by optical nanoantenna arrays loaded with nonlinearities. As an extreme case of light manipulation at the "atomic" scale, I also study the collective oscillation of massless Dirac fermions inside grapheme monolayers, in which surface plasmon polaritons are controlled by electrostatic gating. I present how a graphene monolayer may serve as a building block and design paradigm for adaptable, switchable and frequency-configurable THz metamaterials and nanodevices, realizing various functionalities for cloaking, sensing, absorbing, switching, modulating, phasing, filtering, impedance transformation, photomixing and frequency synthesis in the THz spectrum. Last I present various metamaterial designs applied to invisibility cloaks based on the scattering cancellation mechanism enabled by plasmonic materials and passive/active metamaterials and metasurfaces. This cloaking technology may be used for camouflaging, enhancing the sensitivity and signal-to-noise ratio in RF wireless communication and sensor networks. In addition, electrically-small antennas based on the phase compensation effect offered by metamaterials with low or negative material properties are presented, with tailorable modal frequencies, bandwidth, and radiation properties.
Author: Igal Brener Publisher: Woodhead Publishing ISBN: 0081024037 Category : Science Languages : en Pages : 310
Book Description
Dielectric Metamaterials: Fundamentals, Designs and Applications links fundamental Mie scattering theory with the latest dielectric metamaterial research, providing a valuable reference for new and experienced researchers in the field. The book begins with a historical, evolving overview of Mie scattering theory. Next, the authors describe how to apply Mie theory to analytically solve the scattering of electromagnetic waves by subwavelength particles. Later chapters focus on Mie resonator-based metamaterials, starting with microwaves where particles are much smaller than the free space wavelengths. In addition, several chapters focus on wave-front engineering using dielectric metasurfaces and the nonlinear optical effects, spontaneous emission manipulation, active devices, and 3D effective media using dielectric metamaterials. Highlights a crucial link in fundamental Mie scattering theory with the latest dielectric metamaterial research spanning materials, design and applications Includes coverage of wave-front engineering and 3D metamaterials Provides computational codes for calculating and simulating Mie resonances
Author: Filippo Capolino Publisher: CRC Press ISBN: 9781420054255 Category : Technology & Engineering Languages : en Pages : 0
Book Description
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.
Author: Anatoly V. Zayats Publisher: John Wiley & Sons ISBN: 111863442X Category : Science Languages : en Pages : 266
Book Description
This book, edited by two of the most respected researchers in plasmonics, gives an overview of the current state in plasmonics and plasmonic-based metamaterials, with an emphasis on active functionalities and an eye to future developments. This book is multifunctional, useful for newcomers and scientists interested in applications of plasmonics and metamaterials as well as for established researchers in this multidisciplinary area.
Author: Costantino De Angelis Publisher: CRC Press ISBN: 1351269747 Category : Technology & Engineering Languages : en Pages : 256
Book Description
This book addresses fabrication as well as characterization and modeling of semiconductor nanostructures in the optical regime, with a focus on nonlinear effects. The visible range as well as near and far infrared spectral region will be considered with a view to different envisaged applications. The book covers the current key challenges of the research in the area, including: exploiting new material platforms, fully extending the device operation into the nonlinear regime, adding re-configurability to the envisaged devices and proposing new modeling tools to help in conceiving new functionalities. • Explores several topics in the field of semiconductor nonlinear nanophotonics, including fabrication, characterization and modeling of semiconductor nanostructures in the optical regime, with a focus on nonlinear effects • Describes the research challenges in the field of optical metasurfaces in the nonlinear regime • Reviews the use and achievements of all-dielectric nanoantennas for strengthening the nonlinear optical response • Describes both theoretical and experimental aspects of photonic devices based on semiconductor optical nanoantennas and metasurfaces • Gathers contributions from several leading groups in this research field to provide a thorough and complete overview of the current state of the art in the field of semiconductor nonlinear nanophotonics Costantino De Angelis has been full professor of electromagnetic fields at the University of Brescia since 1998. He is an OSA Fellow and has been responsible for several university research contracts in the last 20 years within Europe, the United States, and Italy. His technical interests are in optical antennas and nanophotonics. He is the author of over 150 peer-reviewed scientific journal articles. Giuseppe Leo has been a full professor in physics at Paris Diderot University since 2004, and in charge of the nonlinear devices group of MPQ Laboratory since 2006. His research areas include nonlinear optics, micro- and nano-photonics, and optoelectronics, with a focus on AlGaAs platform. He has coordinated several research programs and coauthored 100 peer-reviewed journal articles, 200 conference papers, 10 book chapters and also has four patents. Dragomir Neshev is a professor in physics and the leader of the experimental photonics group in the Nonlinear Physics Centre at Australian National University (ANU). His activities span over several branches of optics, including nonlinear periodic structures, singular optics, plasmonics, and photonic metamaterials. He has coauthored 200 publications in international peer-reviewed scientific journals.
Author: Stefan A Maier Publisher: World Scientific ISBN: 9813228741 Category : Science Languages : en Pages : 2001
Book Description
Metamaterials represent a new emerging innovative field of research which has shown rapid acceleration over the last couple of years. In this handbook, we present the richness of the field of metamaterials in its widest sense, describing artificial media with sub-wavelength structure for control over wave propagation in four volumes.Volume 1 focuses on the fundamentals of electromagnetic metamaterials in all their richness, including metasurfaces and hyperbolic metamaterials. Volume 2 widens the picture to include elastic, acoustic, and seismic systems, whereas Volume 3 presents nonlinear and active photonic metamaterials. Finally, Volume 4 includes recent progress in the field of nanoplasmonics, used extensively for the tailoring of the unit cell response of photonic metamaterials.In its totality, we hope that this handbook will be useful for a wide spectrum of readers, from students to active researchers in industry, as well as teachers of advanced courses on wave propagation.
Author: Costantino De Angelis Publisher: CRC Press ISBN: 1351269755 Category : Technology & Engineering Languages : en Pages : 345
Book Description
This book addresses fabrication as well as characterization and modeling of semiconductor nanostructures in the optical regime, with a focus on nonlinear effects. The visible range as well as near and far infrared spectral region will be considered with a view to different envisaged applications. The book covers the current key challenges of the research in the area, including: exploiting new material platforms, fully extending the device operation into the nonlinear regime, adding re-configurability to the envisaged devices and proposing new modeling tools to help in conceiving new functionalities. • Explores several topics in the field of semiconductor nonlinear nanophotonics, including fabrication, characterization and modeling of semiconductor nanostructures in the optical regime, with a focus on nonlinear effects • Describes the research challenges in the field of optical metasurfaces in the nonlinear regime • Reviews the use and achievements of all-dielectric nanoantennas for strengthening the nonlinear optical response • Describes both theoretical and experimental aspects of photonic devices based on semiconductor optical nanoantennas and metasurfaces • Gathers contributions from several leading groups in this research field to provide a thorough and complete overview of the current state of the art in the field of semiconductor nonlinear nanophotonics Costantino De Angelis has been full professor of electromagnetic fields at the University of Brescia since 1998. He is an OSA Fellow and has been responsible for several university research contracts in the last 20 years within Europe, the United States, and Italy. His technical interests are in optical antennas and nanophotonics. He is the author of over 150 peer-reviewed scientific journal articles. Giuseppe Leo has been a full professor in physics at Paris Diderot University since 2004, and in charge of the nonlinear devices group of MPQ Laboratory since 2006. His research areas include nonlinear optics, micro- and nano-photonics, and optoelectronics, with a focus on AlGaAs platform. He has coordinated several research programs and coauthored 100 peer-reviewed journal articles, 200 conference papers, 10 book chapters and also has four patents. Dragomir Neshev is a professor in physics and the leader of the experimental photonics group in the Nonlinear Physics Centre at Australian National University (ANU). His activities span over several branches of optics, including nonlinear periodic structures, singular optics, plasmonics, and photonic metamaterials. He has coauthored 200 publications in international peer-reviewed scientific journals.
Author: Sanghoon Kim
Author: Sanghoon Kim
Author: Ilya V. Shadrivov
Author: Pai-Yen Chen
Author: Ilya V. Shadrivov
Author: Igal Brener
Author: Filippo Capolino
Author: Anatoly V. Zayats
Author: Costantino De Angelis
Author: Stefan A Maier
Author: Costantino De Angelis