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Modeling Optical Metamaterials with Strong Spatial Dispersion

Mnasri, Karim

Abstract (englisch):
Optical metamaterials are artificial media made from subwavelength inclusions with unconventional properties at optical frequencies. While a response to the magnetic field of light in natural material is absent, metamaterials prompt to lift this limitation and to exhibit a response to both electric and magnetic fields at optical frequencies. Due to the interplay of both the actual shape of the inclusions and the material from which they are made, but also from the specific details of their arrangement, the response can be driven to one or multiple resonances within a desired frequency band. With such a high number of degrees of freedom, tedious trial-and-error simulations and costly experimental essays are inefficient when considering optical metamaterials in the design of specific applications. Therefore, to be able to discuss metamaterials on equal footing as natural materials and to consider them in the design of functional applications, the homogenization of optical materials is of utmost importance. Such effective description consists of mapping the optical response of an actual metamaterial to a set of spatially averaged, effective material parameters of a continuum. ... mehr

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Volltext §
DOI: 10.5445/IR/1000104360
Veröffentlicht am 08.01.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Festkörperphysik (TFP)
Publikationstyp Hochschulschrift
Publikationsjahr 2020
Sprache Englisch
Identifikator KITopen-ID: 1000104360
Verlag Karlsruhe
Umfang 163 S.
Abschlussart Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Theoretische Festkörperphysik (TFP)
Prüfungsdatum 29.11.2019
Referent/Betreuer Prof. C. Rockstuhl
Projektinformation KSOP GSC 21 Nachwuchsförderung BMBF (BMBF, 13N9501)
SFB 1173/1 (DFG, DFG KOORD, SFB 1173/1 2015)
Schlagwörter metamaterials, homogenization, nonlocal, interface conditions, Maxwell equations
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