Localized surface plasmon resonance

Nano-sinusoid arrays

Daryoush Mortazavi*, Abas Z. Kouzani, Ladislau Matekovits, Wei Duan

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A new nano-sinusoid shape has recently been proposed, which offers the advantage of more resonance wavelength tunability than that offered by other sharp-tip nano-particles. In this paper, a one-dimensional (1D) chain of the nano-sinusoids is modelled, and results are compared with those describing chains of nano-triangles and nano-diamonds. It is demonstrated that the chain of nano-sinusoids provides more enhancement at hot spots than other examined nano-particle shapes. This enhancement is analytically quantified using the coupling constant values used in the electrostatic eigenmode method for analytically solving Maxwell's equations for the nano-plasmonic devices. In addition, investigating LSPR spectrum of two-dimensional (2D) arrays of NPs demonstrates existence of enhanced surface electric fields on hot spots of the outer rows of the array.

Original languageEnglish
Pages (from-to)638-648
Number of pages11
JournalJournal of Electromagnetic Waves and Applications
Volume27
Issue number5
DOIs
Publication statusPublished - 2013
Externally publishedYes

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