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Title: | Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials | Authors: | Zheludev, Nikolay I. Savinov, V. Fedotov, V. A. |
Keywords: | DRNTU::Engineering::Materials::Photonics and optoelectronics materials | Issue Date: | 2014 | Source: | Savinov, V., Fedotov, V. A., & Zheludev, N. I. (2014). Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials. Physical Review B, 89(20), 205112-. | Series/Report no.: | Physical review B | Abstract: | The toroidal dipole is a peculiar electromagnetic excitation that can not be presented in terms of standard electric and magnetic multipoles. A static toroidal dipole has been shown to lead to violation of parity in atomic spectra and many other unusual electromagnetic phenomena. The existence of electromagnetic resonances of toroidal nature was experimentally demonstrated only recently, first in the microwave metamaterials, and then at optical frequencies, where they could be important in spectroscopy analysis of a wide class of media with constituents of toroidal symmetry, such as complex organic molecules, fullerenes, bacteriophages, etc. Despite the experimental progress in studying toroidal resonances, no direct link has yet been established between microscopic toroidal excitations and macroscopic scattering characteristics of the medium. To address this essential gap in the electromagnetic theory, we have developed an analytical approach for calculating the transmissivity and reflectivity of thin slabs of materials that exhibit toroidal dipolar excitations. | URI: | https://hdl.handle.net/10356/101664 http://hdl.handle.net/10220/19766 |
ISSN: | 1098-0121 | DOI: | 10.1103/PhysRevB.89.205112 | Schools: | School of Physical and Mathematical Sciences | Rights: | © 2014 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: http://dx.doi.org/10.1103/PhysRevB.89.205112. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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Toroidal dipolar excitation and macroscopic electromagnetic properties of metamaterials.pdf | 2.21 MB | Adobe PDF | View/Open |
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