Localized surface plasmon resonance: nano-sinusoid arrays

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

Journal of Electromagnetic Waves and Applications, 2013, vol. 27, issue 5, 638-648

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.

Date: 2013
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DOI: 10.1080/09205071.2013.759519

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