Abstract
This paper presents a simulation study of the photon-to-plasmon coupling effect for the silver (Ag) nanoparticle-nanowire structure. The calculated results show that the in-coupling light efficiency depends on many factors, involving the gap between the nanoparticle and the nanowire, the size of the nanoparticle, the wavelength of the incident light and the dielectric environment. Under certain conditions, the in-coupling light efficiency of such a structure can be increased as compared with that of a single nanowire, suggesting that this nanoparticle-nanowire system can be used as an interesting structure for subwavelength waveguides, optical sensors and many other applications in the field of nanophotonics technology.
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