Electromagnetic metamaterials Finally, Section 1. In other words, these metamaterials can be further defined as artificially structured composite materials , which exhibit interaction with light Jan 15, 2025 · However, the properties of mechanical metamaterials depend on the configuration of the microstructures, meaning that the geometrical parameters and mechanical properties of the fabricated metamaterials are fixed, resulting in the lack of adaptability and reconfigurability. Metamaterials constitute a special category of artificial materials, distinguished by their possession of remarkable properties unparalleled in the natural world. This is accomplished either with photonic crystals (PC) or left-handed materials (LHM). His main research area is the optical properties of matter. S2 B exhibit the optical image of the fabricated mechanical-electromagnetic multifunctional metamaterials with brick–mortar structure. Nov 20, 2013 · This paper proposes a review of electromagnetic metamaterials based on the idea that these are composite materials, their properties depending of the type and dimensions of the structural elements as well as the dimensions of unit cell. PCs can prohibit light propagation altogether. eng. Readers will also benefit from the inclusion of: A thorough introduction to metamaterials, the concept of metasurfaces, and metasurface precursors Aug 8, 2024 · 1 INTRODUCTION. Jan 1, 2015 · As the field of metamaterials has matured over the years, an ever increasing emphasis has been placed on realizing applications. Roadmap on electromagnetic metamaterials and metasurfaces. Starting from monolayer metamaterials, multilayer ones are increasingly researched, especially in the field of electromagnetic wave absorption. Metamaterials with higher Metamaterials, artificial composite structures with exotic material properties, have emerged as a new frontier of science involving physics, material science, engineering and chemistry. This book comprehensively presents the state of the art of metamaterials/metasurfaces from theory to applications. Electromagnetic metamaterials : transmission line theory and microwave applications : the engineering approach / Christophe Caloz, Tatsuo Itoh. Feb 28, 2024 · Metamaterials, recognized as advanced artificial materials endowed with distinctive properties, have found diverse applications in everyday life, military endeavors, and scientific research. Electromagnetic Metamaterials: Properties and Applications discusses a wide range of components to make metamaterial-engineered devices. Tzarouchis1,a,b,*, Maria Koutsoupidou1,a, Ioannis Sotiriou1,, Konstantinos Dovelos1, Nov 20, 2012 · The required permittivity change can be realized by use of 2D electromagnetic metamaterials with ε eff =ε ref =ε d f d +ε a f a =ε a +(ε d −ε a)f d, composed of a dielectric material (ε Sep 20, 2023 · We examined how metamaterials respond to electromagnetic behavior, these are manufactured media are manufactured materials that differ from those of their components. Similar to electromagnetic metamaterials, acoustic metamaterials are constructed by artificial design of two or more materials to form periodic Metamaterials, artificial composite structures with exotic material properties, have emerged as a new frontier of science involving physics, material science, engineering and chemistry. Feb 19, 2024 · Long Li received the B. Jan 3, 2024 · PDF | Roadmap on Electromagnetic Metamaterials and Metasurfaces | Find, read and cite all the research you need on ResearchGate May 28, 2021 · Artificial electromagnetic materials (AEMs)—including electromagnetic metamaterials, photonic crystals, and plasmonics—are research fields where DNN results valorize the data driven approach; especially in cases where conventional methods have failed. May 10, 2022 · Metamaterials refer to a class of artificial composite structures with supernormal physical properties that natural materials do not have. 1, 2 Originally conceived to defy fundamental laws of physics, such as achieving negative refraction, 3 they have since proven to be an exceptionally adaptable medium for manipulating electromagnetic waves across the Electromagnetic metamaterials-from fundamental physics to advanced engineering applications This book presents an original generalized transmission line approach associated with non-resonant structures that exhibit larger bandwidths, lower loss, and higher design flexibility. 2. One such technique is the use of metamaterials (MTMs) in antenna design. Our faculty members demonstrated the world’s first negative refractive index metamaterial in 2000, and in 2006 a Duke ECE engineer invented a metamaterial “invisibility cloak” that renders objects undetectable at microwave frequencies. This critical review focuses on the fundamentals, recent progresses and future directions in the research of electromagnetic metamaterials. They are being developed intensively for their widespread use in microwave technologies 1,2,3 Jan 1, 2025 · Metamaterials have revolutionized wave control; in the last two decades, they evolved from passive devices via programmable devices to sensor-endowed self-adaptive devices realizing a user-specified functionality. Key features • Provides an introduction to the physics, analysis and technology of metamaterials and metasurfaces. Jan 1, 2025 · Metamaterials have revolutionized wave control; in the last two decades, they evolved from passive devices via programmable devices to sensor-endowed self-adaptive devices realizing a user Feb 24, 2023 · Because of their interesting properties, the proposal of using metamaterials 1,2,3 for electromagnetic applications such as antennas 4, optical and quasi-optical transformations 5,6, and even Mar 1, 2023 · Electromagnetic (EM) metamaterials are artificially engineered materials with extraordinary EM properties beyond the limit of existing natural materials; thus, they have been widely used to Metamaterials are so-named to recognize and emphasize their purpose, which is to achieve material performance beyond the limitations of conventional composites. MTMs are artificial In this article, we embark on a historical journey through the development of radio-frequency (RF) metamaterials (MTMs) and metasurfaces (MTSs), tracing their evolution from theoretical concepts well before the name was coined. More complex requirements to manipulate discrete degrees of freedom (DOF) of photons, such as orbital DOF, show great foresight. Cano-Garcia, P. Nov 1, 2022 · Electromagnetic waves bring radio, television and endless streaming content to our devices. This paper aims to be a review in the domain of electromag-netic metamaterials, focusing on the state of the art in sensing technologies using metamaterials. Metamaterials are so-named to recognize and emphasize their purpose, which is to achieve material performance beyond the limitations of conventional composites. 4 Reconfigurable metamaterials with self-adaptive properties. He has been engaged in the theoretical study of photonic crystals and metamaterials for many years, and has published more than 200 research papers and three books 5 days ago · Metamaterials, which have sub-wavelength structures, are a significant advancement in the field of artificial electromagnetic materials [1], [2]. It is based on the novel concept of composite right/left-handed (CRLH) transmission line metamaterials (MMs), which has Metamaterial perfect absorbers have received significant attention owing to their ability of achieving complete absorption of the electromagnetic waves with deeply subwavelength profiles. ISBN-10: 0-471-66985-7 (alk. Metamaterials provide a unique pathway to generate, guide, modulate and detect electromagnetic waves by having structural features that are significantly Jan 1, 2022 · (iii) Space coiling: This type of components that provide Fabry-Perot resonances and used to any condition in which waves can be guided without cut-off, comp arising 3D and 2D acoustic waves and 2D electromagnetic waves. In this course, emphasis will be provided on disseminating the underlying electromagnetic concepts of metamaterials, by judicious use of numerical problems and MATLAB simulation exercises. From rigorous comparison, it is found Jul 5, 2024 · The mechanical performance of materials is equally important for electromagnetic metamaterials, especially in aerospace applications where specific strength is crucial. Part of IOP Series in Electromagnetics and Metamaterials. Electromagnetic (EM) metamaterials are artificially engineered materials with extraordinary EM properties beyond the limit of existing natural materials; thus, they have been widely used to manipulate the amplitude, phase, polarization, frequency, wave vector, waveform, and other degrees of freedom of EM waves in many practical applications. Some specific accomplishments are the first successful numerical simulation of subwavelength focusing with negative refractive index materials, and the first measurement of the spatial distribution of fields inside a metamaterial that directly demonstrated Electromagnetic metamaterials are man-made materials comprised of structures whose electromagnetic properties are deliberately engineered to offer a range of response difficult or impossible to achieve in naturally occurring materials or composites. Feb 14, 2023 · Electromagnetic metamaterials are artificial subwavelength composites with periodic structures, which can interact strongly with the incident light to achieve effective control of the light field. ” Includes bibliographical references and index. Electromagnetic metamaterial absorbers (MMAs), with pivotal roles in applications such as stealth and communication, have revolutionised the field of absorbing materials by offering unique characteristics unattainable by natural materials through artificially designed unit cell structures. doi: 10. Dec 1, 2016 · The review of the design, principles and operation of artificial composite structures with peculiar electromagnetic properties (metamaterials) is presented. 017 Corpus ID: 274311187; 3D and 4D Printing of Electromagnetic Metamaterials @article{Fang20243DA4, title={3D and 4D Printing of Electromagnetic Metamaterials}, author={Ruxuan Fang and Xinru Zhang and Bo Song and Zhi Zhang and Lei Zhang and Jun Song and Yong Chuang Yao and Ming Gao and Kun Zhou and Pengfei Wang and Jian Lu and Yusheng Shi}, journal={Engineering . Electromagnetic Metasurfaces concludes with an incisive discussion of the likely future directions and research opportunities in the field. Therefore, microwave, radio frequency, and longer band metamaterials can be realized through traditional processing techniques, and industrialization is developing rapidly in this area. g. 2 Dec 14, 2021 · Metamaterials enable precise tailoring of light–matter interactions at the subwavelength scale, permitting access to the full range of electromagnetic responses encoded in Maxwell’s equations Electromagnetic metamaterials-from fundamental physics to advanced engineering applications This book presents an original generalized transmission line approach associated with non-resonant structures that exhibit larger bandwidths, lower loss, and higher design flexibility. Electromagnetic bandgap metamaterials (EBG or EBM) control light propagation. In the process of freeze-drying to form composite aerogel, the fluidity of the hydrogel precursor was restricted by the mortise-tenon metamaterial, which made the composite aerogel tightly EECS 598: Electromagnetic Metamaterials Course Objective: The course will present a detailed introduction to electromagnetic metamaterials. Metamaterials’ physical properties rely mostly on their structures. In this article, we propose a multilayer metamaterial Jan 1, 2020 · The concept of metamaterials has been extended to two-dimensional arrays (referred to as metasurfaces) [33], [34]; see Figs. Nov 8, 2005 · Electromagnetic metamaterials-from fundamental physics to advanced engineering applications This book presents an original generalized transmission line approach associated with non-resonant structures that exhibit larger bandwidths, lower loss, and higher design flexibility. 43–45 [Google Scholar] A new definition of refractive index is introduced to describe the idea of metamaterials. , and at the same time, it provides a new way Special Issue on ‘Metamaterials for Novel Wave Phenomena: Theory, Design and Application in Microwaves’, edited by Sander Mann and Stefano Vellucci RESEARCH ARTICLE Electromagnetic metamaterials for biomedical applications: short review and trends Dimitrios C. MMs with electromagnetic wave absorption (MMAs) can be prepared through the structural design and arrangement of unit structures with special physical properties. JPhys Photonics . Oct 23, 2012 · The potential of microelectromechanical systems (MEMS) for electromagnetic metamaterials was initially recognized for the tuning of transmission lines 3,4. In this study, the well-prepared thermoplastic polyurethane/carbon nanotubes composites Leading experts explore the exotic properties and exciting applications of electromagnetic metamaterials Metamaterials: Physics and Engineering Explorations gives readers a clearly written, richly illustrated introduction to the most recent research developments in the area of electromagnetic metamaterials. Success is measured by how close the composite properties are to a volumetric Dec 19, 2024 · In the field of electromagnetic/optical metamaterials, the meta-atom size of a metamaterial is proportional to the working wavelength. MTMs are artificial Besides the conventional spatial metamaterials, recently there has been emphasis on using time-modulation to realize more exotic EM properties. D. Although deep-learning techniques play an increasingly important role in metamaterial … Nov 13, 2023 · Reconfigurable metamaterials can remarkably modulate their electromagnetic characteristics by controlling the active components inside, making them more flexible for electromagnetic protection. Textbooks and graduate courses on the subject matter are scarce. , negative stiffness [2–5], negative Poisson’s ratio [5–11], negative compressibility [12–14] and Nov 25, 2005 · Electromagnetic metamaterials—from fundamental physics to advanced engineering applications. Apr 11, 2024 · H. Microscopic and complex geometrical materials are commonly defined as mechanical metamaterials [48–50]. 1, 2 Originally conceived to defy fundamental laws of physics, such as achieving negative refraction, 3 they have since proven to be an exceptionally adaptable medium for manipulating electromagnetic waves across the However, there is a huge ongoing work on dielectric metasurfaces and metamaterials with the aim of replacing metal structures with dielectric ones in order to reduce the electromagnetic losses. 10. 2 E and Fig. Metamaterials are artificially structured materials, whose electromagnetic properties can be tailored and tuned in ways not easily accomplished with conventional materials. An introduction to Mar 11, 2021 · Metamaterials Duke ECE is home to world leaders in metamaterials and metasurfaces. 1. Their fundamental properties and some of their early investigations are explained. We also have discussed the history of negative index materials, the primary design approaches, and some potential applications, such as sub-wavelength resonant cavities. The holy grail of conventional composite design is to achieve an optimum combination of the constituent's properties without requiring that they react. Magnetic materials. Surface plasmonic resonance is a quantum-electromagnetic phenomenon produced by the interaction of light with free electrons at metal and a dielectric interface, resulting in longitudinal electromagnetic waves known as plasmonic waves [4], [5], [6]. While traditional EM metamaterials exhibit fixed behaviors due to unchangeable material properties and geometries after fabrication, reconfigurable EM metamaterials allow for tunable Jan 1, 2022 · Metamaterials constitute a multidisciplinary subject encompassing electromagnetic, optical, acoustic, and mechanical metamaterials [6,39,47]. Compared with the bulky metamaterials, the metasurfaces are of lower profile and less losses due to the subwave length thickness. In recent years, low-frequency electromagnetic metamaterials have begun to receive attention due to their application prospects in biomedicine, electrical equipment, energy conver-sion and transmission. e. E. ♦ Grading Feb 1, 2021 · This review summarizes the development in realizing the tunability of electromagnetic response in metamaterials incorporated with nematic liquid crystal (LC). Keywords: electromagnetic metamaterials, metasurface devices, lens antenna, transformation optics, meta-lens Important note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Metamaterials can be featured on the walls and windows of smart buildings to control and route Jan 4, 2023 · In another technique, electromagnetic metamaterials composed of periodic arrays of radiating elements placed on the rigid facets of foldable origami and kirigami [23, 24] or substrates with embedded compliant mechanisms [25-27] enable reconfiguration of communications antennas, filters, and even optical properties. These media have special properties such as negative permittivity and very high or negative magnetic permeability in the range of radio and microwave frequencies and, also, the metamaterials which are lossless within a narrow frequency range. Jul 7, 2022 · Electromagnetic (EM) metamaterials with tailored properties are developed for wave manipulation, filtering, and cloaking for aerospace and defense applications. 8 It is, however, in electromagnetics where this paradigm had its beginnings. These unit structures at the subwavelength scale are fundamental for MMAs to surpass the performance Feb 6, 2024 · One of the most fascinating characteristics of EM metamaterials lies in the realm of zero-index metamaterials (ZIMs). The progress of technology in consumer electronics demand an antenna having a compact size, high gain and bandwidth, and multiple antennas at transmitter and receiver to enhance the channel capacity. Smith has been at the forefront in the development of numerical methods to design and characterize metamaterials, and has also provided many of the key experiments that have The key audience for this book includes students enrolled on metamaterials and metasurfaces modules, researchers, as well as industry professionals. Metamaterial absorbers can achieve nearly 100% perfect absorption of incident light at a specific frequency, so they are widely used in sensors, optical switches, communication, and other fields Electromagnetic metamaterials are periodic or nonperiodic artificial structures comprising basic elements in subwavelength scales. Success is measured by how close the composite properties are to a volumetric Nov 26, 2024 · In contrast, electromagnetic shielding metamaterials introduce the absorption mechanism, where interactions between the material’s internal substances and the electromagnetic field convert the energy of electromagnetic waves into heat and other forms, thereby preventing secondary electromagnetic pollution [33]. In this chapter, we will present a general review of the recent progress on theories, designs, and characterizations of metamaterial absorbers. An introduction to Dec 12, 2024 · A key highlight was the session on electromagnetic metamaterials, which explored the dynamic interaction of light and matter at the subwavelength scale. Kallos, Enhancing electromagnetic transmission through biological tissues at millimeter waves using subwavelength metamaterial antireflection coatings, in 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), (IEEE, 2015), pp. Along the way, we explore key milestones, breakthroughs, and the profound impact of these engineered materials on antennas, microwaves, and beyond. Jul 31, 2024 · The flourishing area of electromagnetic (EM) metamaterials and metasurfaces has attracted significant interests for several decades. 9 points out the essential difference existing between photonic crystals or photonic band-gap (PBG) structures, more conventionally simply called “periodic structures”, and MTMs. He was Senior Research Associate in the Wireless Communications Research Center, City University of Hong Kong in 2006. 1088/2515-7647/ad1a3b Powered by Pure , Scopus & Elsevier Fingerprint Engine™ Sep 30, 2021 · Metamaterials with a Dirac-like cone dispersion at the center of the Brillouin zone behave like an isotropic and impedance-matched zero refractive index material at the Dirac-point frequency. Aug 8, 2024 · 1 INTRODUCTION. The double negative metamaterials have unique electromagnetic properties such as the reversal Snell’s law, the reversal Doppler effect, and the anomalous Vavilov-Cherenkov effect (radiation produced by a fast-moving particle as it travels through a medium). Recently the concept of digital metamaterials has been proposed, [196, 197] the constitutive 1-bit meta-atom is digitalized as “0” or “1” corresponding to two opposite EM responses. Electromagnetic Metamaterials My group is involved in many aspects of research on engineered electromagnetic materials, or metamaterials. Although metamaterials have achieved exotic electromagnetic responses – some of which are impossible to achieve with natural materials – the ability to modify these properties in real-time would enable metamaterials to transition into state-of-the-art devices. Chapter 1 provides a discussion on the importance of millimeter wave, terahertz, and infrared radiation. This book presents an original generalized transmission line approach associated with non-resonant structures that exhibit larger bandwidths, lower loss, and higher design flexibility. If certain electromagnetic properties of a material (usually measured in terms of its Apr 7, 2021 · Metamaterials can be defined as a joint of small artificial cells or elements which could be small scatterers or apertures which are distributed in a regular array throughout a region of space, in order to obtain some desirable macroscopic electromagnetic behavior which would be difficult to obtain with natural materials. In addition, a basic problem of the macroscopic electromagnetic field is raised regarding the development of metamaterials in optical frequencies. Oct 11, 2024 · Photonic topological insulators have unique advantages regarding ensuring lossless transmission and realizing stable energy locality of electromagnetic waves. Herein, we report a reconfigurable electromagnetic metamaterial (REMM) composed of a two-dimensional periodic array of spiral copper-clad unit cells, each paralleled with a micro Electromagnetic metamaterials are man-made materials comprised of structures whose electromagnetic properties are deliberately engineered to offer a range of response difficult or impossible to achieve in naturally occurring materials or composites. 2. 2 And in fact there exists a very long history of research on complex electromagnetic material effects, artificial materials, peri- In this article, we embark on a historical journey through the development of radio-frequency (RF) metamaterials (MTMs) and metasurfaces (MTSs), tracing their evolution from theoretical concepts well before the name was coined. By incorporating an electric diode into the unit cell of metamaterials, the scattering state This book delves into the cutting-edge research in the field of applied electromagnetism, offering an expansive overview of the fundamental aspects of emerging metamaterials and a thorough exploration of two types of novel electromagnetic radiations observed in the metamaterials, along with the corresponding devices. Feb 19, 2024 · Therefore, on the interface between the LHM and the right-hand medium, for instance LHM-air interface, there will be negative refraction. and Ph. May 27, 2024 · Explore the world of Electromagnetic Metamaterials: their unique properties, groundbreaking applications, challenges, and future potential. The metamaterials medium of the space-coiling shows the main parameters of electromagnetic space coiling metamaterial 5. Metamaterials (MMs) with artificial structures have extraordinary physical properties that cannot be found in traditional materials. 1 DEFINITION OF METAMATERIALS (MTMs) AND LEFT-HANDED (LH) MTMs Electromagnetic metamaterials (MTMs) are broadly defined as artificial Jul 9, 2001 · Metamaterials are so-named to recognize and emphasize their purpose, which is to achieve material performance beyond the limitations of conventional composites. We will first review the fundamental theories and design Apart from the optical, electromagnetic and thermal metamaterials, a class of mechanical metamaterials (MMs) through the construction of periodic units comprising tailored geometry and pattern, giving unique mechanical properties, i. Jan 20, 2025 · Flexible electromagnetic metamaterials are a potential candidate for the ideal material for electromagnetic control due to their unique physical properties and structure. In recent years, metamaterials have become a hot topic in the scientific com-munity due to their remarkable electromagnetic properties. Therefore, the exploration and development of advanced electromagnetic metamaterials for use in millimeter wave, terahertz, and infrared regimes is of great importance. Early work can be traced back to 1968 when Victor G Veselago firstly presented the theory of negative refraction with negative permittivity and negative permeability . Cui TJ, Zhang S, Alù A, Wegener M, Pendry SJ, Luo J et al. Metamaterials have the ability to alter electromagnetic and acoustic waves in ways that bulk materials cannot. paper) ISBN-13: 978-0-471-66985-2 (alk. Electromagnetic metamaterial agent Shengguo Hu1,MingyiLi1,JiawenXu1, Metamaterials have revolutionized wave control; in the last two decades, they evolved from passive devices via Sep 3, 2024 · The new-generation electronic components require a balance between electromagnetic interference shielding efficiency and open structure factors such as ventilation and heat dissipation. Physical preconditions of metamaterials Electromagnetic Metamaterials 3 lead to new constructions like, for example, mimumes–microfibrous multifunctional metamaterials. p. In the beginning, metamaterials were first an interesting theoretical Jan 15, 2025 · Fig. V, dealing with a special class of innovative EM composites materials, metamaterials, with peculiar EM properties. Mar 9, 2024 · Utilizing electromagnetic metamaterials to wrap the transmitting or receiving coils is equivalent to shortening the distance between the transmitting and receiving coils, which is expected to solve the problem of non-contact and safe power supply of terminal equipment, drones, electric vehicles, etc. Shortly after the first publications on He was also the Head Investigator of the research project “Electromagnetic Metamaterials” organized by MEXT, Japan. A metamaterial is an artificially structured medium that exhibits electromagnetic properties that can go beyond those found in nature, hence the name meta-materials. Success is measured by how close the composite properties are to a volumetric Nov 20, 2013 · The theoretical and experimental study of electromagnetic metamaterials gained in the last 20 years, a special development. Feb 19, 2024 · Metasurface as a surface version of the metamaterial is engineered by arranging a set of meta-atom into a two-dimensional (2D) pattern. 1 C and 1. Kosmas, E. Mar 1, 2009 · The European Virtual Institute for Artificial Electromagnetic Materials and Metamaterials 13 defines the metamaterial as “an arrangement of artificial structural elements, designed to achieve advantageous and unusual electromagnetic properties”. 1016/j. In addition, realizing the tunable shielding of porous shields over a wide range of wavelengths is even more challenging. It explores the fundamental physics, the designs, and the engineering aspects, and points to a myriad of exciting potential applications. Oct 1, 2022 · Electromagnetic cloaking by metamaterials, a, Light ray trajectories within a cloaking shell are being redirected smoothly around the object at the center, making the object appear invisible to an outside observer since the rays outside are unperturbed (left). 2024. Pendry opened the session by discussing the potential of time-based metamaterials and the experimental opportunities they present. In this paper, we design and demonstrate two kinds of topological metamaterials, A and B, with arbitrary Mar 1, 2007 · Metamaterials are artificial electromagnetic (multi-)functional materials engineered to satisfy the prescribed requirements. 2030. Success is measured by how close the composite properties are to a volumetric Oct 27, 2023 · Metamaterials and metasurfaces are essential components of recent electromagnetic research activities. Section VI discusses the advantages and disadvantages of electromagnetic measurement approaches and technological applications of electromagnetic Apr 26, 2024 · Inverse design of electromagnetic metamaterials: from iterative to deep learning-based methods, Chen Ma, Zhenyu Wang, Hui Zhang, Fengyuan Yang, Jianlin Chen, Qinghua Ren, Yiming Ma, Nan Wang Sep 20, 2023 · The emerging area of electromagnetic metamaterials has given rise to novel phenomena like the negative index of refraction and technological innovations like the electromagnetic cloak. Jul 1, 2024 · Smart reconfigurable metamaterials can better adapt to changing electromagnetic environments and broaden the range of applications. These types of metastructures have an advantage over three-dimensional metamaterials because they take up less physical space and have the potential for lower losses. Metamaterial has been a research hotspot in physical and information sciences. Flexible electromagnetic Jan 31, 2019 · The field of metamaterials emerged from linear electromagnetism two decades ago and today addresses nearly all conceivable aspects of solids, ranging from electromagnetic and optical, and Artificially structured composites, known as metamaterials, exhibit novel properties that do not exist in natural materials, broadening human abilities in manipulating electromagnetic waves. The field of metamaterials is an emerging area and limited resources are available to students that wish to learn about this research area. It explores the fundamental physics, the designs, and the engineering aspects, and Sep 1, 2022 · The science of plasmonic has recently gained extensive attention due to its optical properties in metal and semiconductors [1], [2], [3]. “Wiley-Interscience publication. In this review, I present the history and main progresses achieved in Nov 1, 2024 · DOI: 10. paper) 1. They can be used to control electromagnetic waves by designing the basic elements and their spatial arrangements. A metamaterial’s properties are derived from its structure, rather than the materials it is composed of. In 1968, Veselago explored materials of negative permittivity and permeability Nov 21, 2022 · In 2000, Liu first proposed the construction of acoustic metamaterials by using structural cells of the locally resonant type , which opened a new way for the research of acoustic metamaterials. The theoretical side includes electrodynamics of left-handed medium, generalized Snell's law, digital coding metamaterials/metasurfaces, group theory of metamaterials, information metamaterials and metasurfaces, etc. In this review, we will summarize recent advances in Therefore, the exploration and development of advanced electromagnetic metamaterials for use in millimeter wave, terahertz, and infrared regimes is of great importance. ZIMs possess the remarkable ability to achieve uniform electromagnetic field Electromagnetic (EM) metamaterials are artificially engineered materials with extraordinary EM properties beyond the limit of existing natural materials; thus, they have been widely used to manipulate the amplitude, phase, polarization, frequency, wave vector, waveform, and other degrees of freedom of EM waves in many practical applications. Such Electromagnetic metamaterials have the excellent property of regu-lating magnetic field, which has been a research hot spot. [13], [14] The periodic interconnection design pattern facilitates the propagation of damage among cells, leading to the Jul 1, 2001 · There are different types of metamaterials, e. Electromagnetic metamaterials respond to chosen parts of radiated light, also known as the electromagnetic spectrum, in a manner that is difficult or impossible to achieve with natural materials. We specifically focus on electromagnetic and acoustic metamaterials, as these have the greatest potential near- and medium-term impact. cm. Over the last decade, numerous techniques are proposed to improve the performance of the antenna. Superior properties as compared to what can be found in nature are often underlying in the spelling of metamaterial. degrees in electromagnetic fields and microwave technology from Xidian University, Xi’an, China, in 1998 and 2005, respectively. , electromagnetic metamaterials modulating electromagnetic waves [3] or mechanical metamaterials with extraordinary specific mechanical behavior [4 Electromagnetic Metamaterials . The emergence of metamaterials has opened up new research directions for classical electromagnetic theory and made it possible to manipulate electromagnetic waves effectively. These specially designed composites display customised reactions to electromagnetic waves, allowing unparalleled control over how the waves move [3]. Engineered electromagnetic materials have advanced significantly within a decade of studying metamaterials, from microwave to optical frequencies. However, constructing electromagnetic reconfigurable metamaterials, especially those with large areas or applied to complex surfaces via a universal approach, is still a challenge. The prefix meta means after, beyond and also of a higher kind. 4 To realize reconfigurability of an ESS in a wide range, we mainly propose two approaches, as illustrated in Figure 1 B. The metamaterials in these Oct 19, 2023 · It is a significant challenge to construct reconfigurable electromagnetic metamaterials that can precisely manipulate broadband megahertz electromagnetic waves. Metamaterials have various applications, starting from perfect lenses[4–6]andinvisiblecloaks[7,8],antennas[9,10]anddifferent types of sensors [11–13]. Apr 26, 2024 · This paper proposes a system-based approach to classify metamaterials based on the behavior of the complex poles and residues of the electromagnetic fields in the materials. Metamaterials are classified into 12 types, depending on their nature as double-positive permittivity and permeability (DPS), double-negative permittivity and permeability (DNG), epsilon-negative (ENG), or mu-negative (MNG ABSTRACT. Metamaterials are approaching commercialization; this report explores the timing and scale of the opportunity 4 Temperature Map of Metamaterial Thermal “Invisibility Cloak” Metamaterials: Physics and Engineering Explorations gives readers a clearly written, richly illustrated introduction to the most recent research developments in the area of electromagnetic metamaterials. 2024 Jul;6(3). Metamaterials structural elements Electromagnetic metamaterials are a family of shaped periodic materials which achieve extraordinary scattering properties that are difficult or impossible to achieve with naturally occurring materials. Sep 8, 2022 · A new paradigm to investigate electromagnetic composites is then revealed in Sec. zeznl lmvlu fhy neh raig sdcl hiz wnhlf ixet eaynk njeucmm iggx nxiwr qqrqtu yixq