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Plasmon-Polariton Properties in Metallic Nanosphere Chains

Department of Quantum Technology, Wrocław University of Technology, Wyb. Wyspiańskiego 27, Wrocław 50-370, Poland
Department of Natural Science, Odessa Military Academy, Fontanskaya Doroga 10, Odessa 65009, Ukraine
IT Department, Odessa National Academy of Telecommunications (ONAT), 1 Kovalska str., Odessa 65029, Ukraine
Author to whom correspondence should be addressed.
Academic Editor: Gururaj V. Naik
Materials 2015, 8(7), 3910-3937;
Received: 28 March 2015 / Revised: 21 May 2015 / Accepted: 17 June 2015 / Published: 29 June 2015
(This article belongs to the Special Issue Plasmonic Materials)
PDF [1075 KB, uploaded 29 June 2015]


The propagation of collective wave type plasmonic excitations along infinite chains of metallic nanospheres has been analyzed, including near-, medium- and far-field contributions to the plasmon dipole interaction with all retardation effects taken into account. It is proven that there exist weakly-damped self-modes of plasmon-polaritons in the chain for which the propagation range is limited by relatively small Ohmic losses only. In this regime, the Lorentz friction irradiation losses on each nanosphere in the chain are ideally compensated by the energy income from the rest of the chain. The completely undamped collective waves were identified in the case of the presence of persistent external excitation of some fragment of the chain. The obtained characteristics of these excitations fit the experimental observations well. View Full-Text
Keywords: plasmons; metallic nano-chain; Lorentz friction; plasmon-polariton; radiative undamped propagation plasmons; metallic nano-chain; Lorentz friction; plasmon-polariton; radiative undamped propagation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Jacak, W.A.; Krasnyj, J.; Chepok, A. Plasmon-Polariton Properties in Metallic Nanosphere Chains. Materials 2015, 8, 3910-3937.

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