Reproduktionsnotiz:
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Entstehung:
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"SPIE Digital Library."--Website
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Beschreibung:
"The field of metamaterials arose from a deeper understanding of how electromagnetic waves interact with materials and subwavelength-scaled scattering structures. This opened up the field of metamaterials or engineered materials through advances in understanding how material properties not found in nature could be designed along with advances in fabrication capabilities. Metamaterial advances span the electromagnetic spectrum, with examples being more common at lower (e.g., microwave) frequencies. The microwave or x-band regime has proven to be a good testbed for the first generation of metamaterials, but recently we have seen optical and IR metamaterials emerging as well. The exploitation of these more complex material-wave interactions, based on arrangements of subwavelength scale components, has generated a lot of global activity. We can, in principle, engineer material properties to greatly extend those currently available. This tutorial text presents both the usual and unusual electromagnetic properties of materials, focusing especially man-made or engineered metamaterials. After a review of Maxwell's equations and material properties, the idea of resonant meta-atoms and composite media are introduced. The fabrication of metamaterials and the properties of negative index materials are explained. The difficulties associated with reducing the size of meta-atoms for use at optical frequencies are described, and the use of metamaterials for superresolution imaging is presented in some detail"--
10. Superresolved imaging: 10.1. Superresolution using metamaterials: a case study; 10.2. The inverse scattering problem; 10.3. Degrees of freedom; 10.4. Numerical examples; 10.5. Perfect imaging; 10.6. Slab imaging example; 10.7. Compressive sampling -- References -- Index
Preface -- Acknowledgments -- 1. Introduction: 1.1. Historical perspective; 1.2. Basic electromagnetic properties of materials; 1.3. Maxwell's equations; 1.4. Differential form of Maxwell's equations; 1.5. The six velocities of light; References -- 2. Material properties: 2.1. Material classification; 2.2. Metals; 2.3. Dielectrics; 2.4. Equivalent-circuit overview -- 3. Meta-atoms: 3.1. Overview; 3.2. Meta-atom building blocks; 3.3. Metal resonators; 3.4. Split-ring resonators; 3.5. Constitutive parameter estimation; 3.6. Metasurfaces; References -- 4. Composite media and effective medium approximations: 4.1. Composite media; 4.2. Form-birefringent metamaterials; 4.3. Summary; References -- 5. Anisotropic microwave metamaterials: 5.1. Form-birefringent materials: a case study; 5.2. Example microwave material; References; 6. Negative index: 6.1. History of negative index; 6.2. Graphical examples of wave propagation; References -- 7. Numerical simulations: 7.1. Frequency-dependent numerical models; 7.2. Negative-index properties and computational restrictions; References -- 8. Making smaller structures: optical metamaterials: 8.1. Material challenges; 8.2. Plasma waves and plasmonics; 8.3. Optical metamaterials; 8.4. Hyperbolic metamaterials; References -- 9. Optical materials and fabrication challenges: 9.1. Thin films; 9.2. Thin dielectric gaps between metal surfaces; 9.3. Fabrication methods and challenges; 9.4. Process impact of RIE and EBL; 9.5. Lithographic techniques; References --