Accuracy of surface integral equation matrix elements in plasmonic calculations

T. V. Raziman, W. R.C. Somerville, O. J.F. Martin, E. C. Le Ru

Research output: Contribution to journalArticleAcademicpeer-review

35 Citations (Scopus)

Abstract

We study the convergence of the integrals required to be evaluated in the surface integral equation (SIE) formulation (or method of moments) for simulating the optical response of plasmonic nanostructures. We analyze how the numerical quadratures used to compute the integrals affect the accuracy of the SIE matrix elements and, in turn, that of the relevant physical quantities calculated using the method. Based on these studies, we propose an optimized algorithm for evaluation of the integrals, which improves the accuracy of the results without significantly increasing the calculation overhead.

Original languageEnglish
Pages (from-to)485-492
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Volume32
Issue number3
DOIs
Publication statusPublished - 1 Mar 2015
Externally publishedYes

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