Scattering of Light From Graphene-Coated Nanoparticles of Negative Refractive Index
Optik - International Journal for Light and Electron Optics
The recent study of the Lorenz-Mie scattering from a graphene-coated sphere is extended to the case when the sphere is of negative refractive index, focusing on the two intriguing phenomena observed previously for a “bare” negative index sphere of sub-wavelength sizes, namely, the non-Rayleigh behavior and the low-frequency resonances. It is observed that while the graphene coating can regulate the non-Rayleigh scattering back towards Rayleigh, manifested with its own low frequency plasmonic resonances in the IR region; the low-frequency peak observed previously can be significantly suppressed with the result rather insensitive to the doping level of the graphene layer. These graphene-induced effects are clarified via a study of the Bohren-Hunt theory in the limit of small size parameters for the negative refracting sphere.
Locate the Document
Bian T., Gao X., Yu S., Jiang L., Lu J., Leung P.T. 2017. Scattering of Light From Graphene-Coated Nanoparticles of Negative Refractive Index. Optik - International Journal for Light and Electron Optics, 136:215-221.