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Multipolar Analysis of Ordered and Disordered Metasurfaces

Rahimzadegan, Aso ORCID iD icon 1
1 Institut für Theoretische Festkörperphysik (TFP), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Optical metasurfaces are 2D arrangements of nanoparticles that enable abrupt modulation of an impinging light wavefront within an ultra-thin surface. They are promising candidates to replace bulky conventional optical components such as mirrors, lenses, diffusers, etc. The rapid growth of nanofabrication and a constantly increasing demand for miniaturization have made metasurface’s design with desired optical functionalities an ever-growing necessity. Analytical tools that can provide physical insights and improved design capabilities are crucial for that aim, and are the center of attention in this thesis. Based on a local-coordinate transition matrix (T-matrix) method, we aim at providing analytical insights to both ordered and disordered metasurfaces. The local-coordinate T-matrix method provides a comprehensive analytical tool to monitor the changes in the effective response of the nanoparticles inside a lattice.


For periodic metasurface made from identical nanoparticles, despite their abundance and importance, closed-form analytical expressions describing their optical response have not been reported, and most attempts have been predominantly approximations. ... mehr


Volltext §
DOI: 10.5445/IR/1000148799
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Festkörperphysik (TFP)
Karlsruhe School of Optics & Photonics (KSOP)
Publikationstyp Hochschulschrift
Publikationsdatum 25.07.2022
Sprache Englisch
Identifikator KITopen-ID: 1000148799
Verlag Karlsruher Institut für Technologie (KIT)
Umfang x, 142 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Theoretische Festkörperphysik (TFP)
Prüfungsdatum 29.10.2021
Schlagwörter Metasurface, Disorder, Nanophotonics, Optics, Photonics, Diffuser, Metamaterial
Referent/Betreuer Rockstuhl, Carsten
Staude, Isabelle
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