Introduction to metamaterials pdf

However, metamaterials are sometimes regarded as lefthanded materials or negative refractive index materials by a lot of people including researchers. Metamaterials are new artificial materials with unusual electromagnetic properties that are not found in naturally occurring materials. Introduction, history, and selected topics in fundamental. Bk2008031, the national basic research program 973 of china under grant no. Feb 09, 2017 introduction to metamaterials electromagnetics 2fh3 video project. Pdf introduction to the special issue on metamaterials r. Some examples of available metamaterials are negative index metamaterials, chiral metamaterials, plasmonic metamaterials, photonic metamaterials, etc. With the terms metamaterials, we intend an engineered material, with electromagnetic characteristics beyond to that of the natural materials. Acoustic metamaterials with double negative parameters 5. Metamaterials have a negative index of refraction and use this property to redirect waves around. Waves in gradient metamaterials download ebook pdf, epub. This book presents the first selfcontained introduction to a newly shaping branch of applied physics on the frontier between modern photonics, electromagnetics, acoustics of heterogeneous media, and design of heterogeneous metamaterials and nanostructures with special properties unattainable in nature. Reports on leadingedge engineering from the 2015 symposium. Over the past 5 years, digital coding and programmable metamaterials have been developed rapidly since their first exhibition in 2014.

The modern history of electromagnetic metamaterials, often called simply as metamaterials. Introduction metamaterials mms are rationally designed, artificial materials with versatile properties that can be tailored to fit a given practical need, and often go well beyond what can be obtained with natural materials see, e. Metamaterials can be defined as artificially structured materials used to control and mold the flow of electromagnetic waves or possibly any other type of physical waves. Acoustic metamaterials with negative mass density and densitynearzero 3. The immense potential of refractive index engineering in metamaterials can be further.

Pdf introduction to the special issue on metamaterials. This article is an introduction to the interesting field of metamaterials. Included here is an introduction to optical transformation theory, revealing invisible cloaks, em concentrators, beam splitters, and newtype 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. Transformation optics and metamaterials a v kildishev, v m shalaev doi.

Since the early 2000s, metamaterials have emerged as a rapidly growing interdisciplinary area, involving physics, electrical engineering, materials science, optics, and nanoscience. Averitt research themes equilibrium is when all of the fast stu. When a wave, like a light or sound wave, moves from one medium to another, it undergoes refraction according to snells law. Metamaterials are defined as macroscopic composites having a manmade, three dimensional, periodic cellular architecture designed to produce an optimized. This book presents the first selfcontained introduction to a newly shaping branch of applied physics on the frontier between modern photonics, electromagnetics, acoustics of heterogeneous media, and design of heterogeneous metamaterials and nanostructures with special properties unattainable in. Magnetism from conductors and enhanced nonlinear phenomena, ieee. Acoustic metamaterials research is an exciting and rapidly expanding topic in the field of acoustics. There have been increasing interests in metamaterials in the past 10 years in the scientific communities. Metamaterials with negative n have numerous interesting properties snells law n 1 sin. Twodimensional lattice structures with specific geometric features have been reported to have a negative poissons ratio, termed as auxetic metamaterials, that is, stretchinginduced expansion in the transversal direction. Abstract there have been increasing interests in metamaterials in the past 10 years. It has captured the imagination of the scientific community because of the promise to realize physical phenomena which had previously been deemed impossible such as acoustical lenses that defeat the diffraction limit, acoustic cloaks, and devices that enable nonreciprocal wave propagation. Leading experts explore the exotic properties and excitingapplications of electromagnetic metamaterials metamaterials.

Metamaterials provide tools to significantly enhance the sensitivity and resolution of sensors. Springer series in computational mathematics, vol 43. Application to communications systems design ignacio gil departament denginyeria electronica. Use the angular momentum density as the conserved quantity in the general balance relation from problem 2. Hyperbolic metamaterials hmms show distinctive characteristics such as negative refraction 16,17, subwavelength imaging 18,19,20, confining the. This seemingly trivial progress has successfully reform the design theory from the effective medium.

It explores the fundamental physics, the designs,and the engineering aspects, and points to. Acoustic metamaterials with inhomogeneous and anisotropic mass density 6. Ece 331 intro to materials for ece iiiv examples gaas inp inas algaas ingaas ingaasp gngan ingan ece331 wi11 lecture 1 know your periodic table. In this paper, we designed a novel auxetic metamaterial. Metamaterials and the science of invisibility prof. Stewart, magnetism from conductors and enhanced nonlinear phenomena, ieee trans. The ability to engineer the properties of highperformance materials is critical for applications ranging from highefficiency energy production and storage to advanced medical imaging and therapeutics.

Metamaterials are artificial materials engineered to realise a plethora of novel functionalities and phenomena, which are unreachable by naturally occurring materials 252627282930. Timedomain finite element methods for maxwells equations in metamaterials. The book gives novices a platform from which they can start exploring the subject in more detail. Realization of broadband negative refraction in visible. In agriculture the sensors are based on resonant material and employ srr to gain better sensitivity, in. Introduction to metamaterials electromagnetics 2fh3. Bose showed the possibility of existence of artificial material by. To provide a one lecture introduction to metamaterials that can be used to introduce the subject to students at the college level. Acoustic metamaterials with negative bulk modulus 4. This work was supported in part by a major project of the national science foundation of china under grant nos. Litchinitser, in fundamentals and applications of nanophotonics, 2016. Since a metamaterial is a material which is having negative. This is a video that our group made introducing the concept of metamaterials.

Since the inception of the term metamaterials, acoustic metamaterials have being explored theoretically but there has been little headway on the experimental front. Greek are new artificial materials with unusual electromagnetic properties that are not found in. Optical and mechanical metamaterialsintroductionjennifer dionne and luke sweatlock. Dispersion compensation in a transmission line using a dng medium. Metamaterials are under consideration for many applications.

Introduction to metamaterials materials education matedu. Physics and engineering explorations givesreaders a clearly written, richly illustrated introduction to themost recent research developments in the area of electromagneticmetamaterials. The iconic feature of the digital coding metamaterial is using digital codes like 0 and 1 to represent the distinct electromagnetic em responses. Metamaterial sensors are used in agriculture, biomedical etc. It traces the history of its development and introduces the reader to the electromagnetic aspects of metamaterials. Request pdf on may 1, 2020, ragini sharma and others published introduction to metamaterials find, read and cite all the research you need on researchgate. Introduction to the special issue on acoustic metamaterials.

It is wellknown that metals at optical frequencies are characterized by an electric permittivity that varies with frequency according to the following, so called drude, relation 8 where is the plasma frequency, i. Realization of broadband negative refraction in visible range. Introduction to metamaterials is a course taught by prof. My book on metamaterials, an introduction to metamaterials and waves in composites has been published on june 16, 2011 by crc press taylor and francis. The book is meant for students, researchers, engineers, and educators who want to get a basic grounding on the theory that is the basis of recent excitement about negative materials. In this feature issue, fifteen papers are included with broad. The real parts of both and do not have to be negative for a passive material to display negative refraction. The development of acoustic metamaterial will yield new insight in material science and offer great. Feb 07, 2017 metamaterials and the science of invisibility prof.

The professor harry messel international science school 6,223 views 52. These designs are often inspired by natural cellular materials such as plant and bone tissue which have superior mechanical efficiency due to their low weight to stiffness ratios. Introduction contd the response of a metamaterial to an incident electromagnetic wave can be classified by assigning to it an effective permittivity and effective permeability such an assignment requires that the unit cell of metamaterials be much smaller than wavelength rreff 0 rreff 0 4. Brief introduction to metamaterials by nicola tedeschi june 30, 2014 1 dispersion models of natural materials in this report, we want to drawn an introduction to metamaterials. The development of acoustic metamaterial will yield new insight in material science and offer great opportunities for several applications. Oct 16, 2015 introduction contd the response of a metamaterial to an incident electromagnetic wave can be classified by assigning to it an effective permittivity and effective permeability such an assignment requires that the unit cell of metamaterials be much smaller than wavelength rreff 0 rreff 0 4. Requiring no advanced knowledge of wave propagation, an introduction to metamaterials and waves in composites focuses on theoretical aspects of metamaterials, periodic composites, and layered composites. The foregoing considerations are simplistic for actual materials, which must have complexvalued and. Basic theory of nanostructured metamaterials 12 introduction 12 1. In addition to a negative index ni of refraction, properties such as artificial magnetism2, negative permittivity, and negative permeability have. Introduction to the special issue on metamaterials.

With the ability to manipulate and precisely tailor the micro and nanostructures with sizes that are comparable to or smaller than the wavelength of light, unique optical properties beyond those offered by natural materials can be achieved in various nanophotonic platforms including plasmonics, photonic crystals and metamaterials. Theory of confined plasmonic waves in coaxial cylindrical cables fabricated of metamaterials m. Introduction to metamaterials electromagnetics 2fh3 video project. Metamaterial, an artificially structured material that exhibits extraordinary electromagnetic properties not available or not easily obtainable in nature. Due to their subwavelength nature, metamaterials that operate at microwave frequencies have a typical unit cell size of a few millimetres, while metamaterials operating at the visible part of the. Introduction to metamaterials boston university physics. Introduction to metamaterials electromagnetics 2fh3 video. Metamaterial opens a door for designing sensor with specified sensitivity. Nanostructured metamaterials european commission europa eu. Theory and phenomena of metamaterials fulvio frisone. In 2007, one researcher stated that for metamaterial applications to be realized, energy loss must be reduced, materials must be extended into threedimensional isotropic materials and production techniques must be industrialized. Microscale structural metamaterials are synthetic structures that are aimed to yield specific desired mechanical advantages.