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Abstract
Within the paradigm of metamaterials and metasurfaces, the electromagnetic properties of composite materials can be engineered by shaping or modulating their constituents, the so-called meta-atoms. Synthesis and analysis of complex-shaped meta-atoms with general polarization properties is a challenging task. In this paper, we demonstrate that the most general dipolar response of any small object can be conceptually decomposed into a set of basic fundamental polarization phenomena, which enables immediate all-direction characterization of the electromagnetic properties of arbitrary linear materials and metamaterials. The proposed platform for modular characterization is tested on several examples of bianisotropic and nonreciprocal meta-atoms. As a demonstration of the potential of this modular analysis, we use it to design a single-layer metasurface of vanishing thickness with unitary circular dichroism. The analysis approach developed in this paper is supported by a ready-to-use computational code and can be further extended to meta-atoms engineered for other types of wave interactions, such as in acoustics and mechanics.
Original language | English |
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Article number | 024059 |
Number of pages | 9 |
Journal | Physical Review Applied |
Volume | 12 |
Issue number | 2 |
DOIs | |
Publication status | Published - 28 Aug 2019 |
MoE publication type | A1 Journal article-refereed |
Keywords
- SPLIT-RING RESONATORS
- METAMATERIALS
- OPTICS
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Dive into the research topics of 'Modular Analysis of Arbitrary Dipolar Scatterers'. Together they form a unique fingerprint.Projects
- 1 Finished
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Transparent reflectors: Functional metasurfaces for future antenna technology
Diaz Rubio, A. (Project Member), Tretiakov, S. (Principal investigator), Tcvetkova, S. (Project Member), Albooyeh, M. (Project Member), Radi, Y. (Project Member), Asadchy, V. (Project Member), Ptitcyn, G. (Project Member) & Cuesta, F. (Project Member)
01/09/2015 → 31/08/2019
Project: Academy of Finland: Other research funding