Analytical model of plasmonic resonance from multiple core-shell nanoparticles

Mohammad Habibur Rahaman; Brandon A. Kemp

doi:10.1117/1.OE.56.12.121903

23 February 2017 Analytical model of plasmonic resonance from multiple core-shell nanoparticles

Mohammad Habibur Rahaman, Brandon A. Kemp

Author Affiliations +

Optical Engineering, Vol. 56, Issue 12, 121903 (February 2017). https://doi.org/10.1117/1.OE.56.12.121903

Abstract

We present the analytical solution of multiple core-shell nanoparticles using the multiple scattering theory. Plasmonic resonance from two and three core-shell nanoparticles is investigated to understand the optical properties of multiple core-shell nanoparticles. It is shown that the optical properties can be tuned either by changing the distance between core-shell nanoparticle or by changing their core-to-shell ratio. If the distance of two core-shell nanoparticle increases, the particles respond like two isolated core-shell nanoparticle, and if the distance decreases they show stronger resonance. We also demonstrate that the relative position of multiple core-shell nanoparticles plays a vital role for the enhancement of field intensity. The results provide a fast approach to analytically probe the tunable optical properties that solid single or multiple metal nanoparticles can demonstrate. We have validated our results using finite element method.

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Mohammad Habibur Rahaman and Brandon A. Kemp "Analytical model of plasmonic resonance from multiple core-shell nanoparticles," Optical Engineering 56(12), 121903 (23 February 2017). https://doi.org/10.1117/1.OE.56.12.121903

Received: 23 September 2016; Accepted: 3 February 2017; Published: 23 February 2017

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