Analytical approximations of the dispersion relation of a linear chain of metal nanoparticles

Anno: 2011

Autori: Guasoni M., De Angelis C.

Affiliazione autori: 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.

Giornale/Rivista: OPTICS COMMUNICATIONS (PRINT)

Volume: 284 (7)      Da Pagina: 1822  A: 1827

Parole chiavi: surface plasmon polariton
DOI: 10.1016/j.optcom.2010.11.082

Citazioni: 2
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-21
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