Analytical approximations of the dispersion relation of a linear chain of metal nanoparticles
Authors: Guasoni M., De Angelis C.
Autors Affiliation: Dipartimento di Ingegneria dell’Informazione and Consorzio Interuniversitario per le Scienze Fisiche della Materia, Università di Brescia, via Branze 38, Brescia 25123, Italy
Abstract: We find some useful analytical approximations of the dispersion relation of a linear chain of metal nanoparticles in the subwavelength limit where the dipolar approximation can be used. We also approximate the group velocity without a direct estimation of the derivative of the dispersion relation, that carries unavoidable error amplifications. In the end we use these results in order to get some simple recipes that evaluate the sensitivity of the dispersion relation and the propagation losses with respect to the main parameters of the chain. (C) 2010 Elsevier B.V. All rights reserved.
Journal/Review: OPTICS COMMUNICATIONS (PRINT)
Volume: 284 (7) Pages from: 1822 to: 1827
KeyWords: surface plasmon polaritonDOI: 10.1016/j.optcom.2010.11.082Citations: 2data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2019-11-10References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here