17 November 2016 Tunable optical properties of the core-shell nanoparticles
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Noble metallic nanoparticle exhibits unique optical properties in visible to near infrared band when its localized surface plasmon resonance is excited. For example a sharp absorption peak at 509nm for a gold nanoparticle at the diameter of 60nm. The plasmonic properties heavily depend on its geometrical structure. In this paper, we theoretically calculate the optical properties of a single nanoparticle with different structure such as solid and core-shell. The simulation results show that the core-shell structure can reach a much broader tunable band and in which the shell thickness plays a dominant role. Further by employing a core-shell pair, more flexible properties can be reached.
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Xin Hong, Xin Hong, Chenchen Wang, Chenchen Wang, } "Tunable optical properties of the core-shell nanoparticles", Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 1002717 (17 November 2016); doi: 10.1117/12.2244490; https://doi.org/10.1117/12.2244490

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