Journal article

Scattering characteristics of an exciton-plasmon nanohybrid made by coupling a monolayer graphene nanoflake to a carbon nanotube

Viraj Senevirathne, Harini Hapuarachchi, Sudaraka Mallawaarachchi, Sarath D Gunapala, Mark Stockman, Malin Premaratne

Journal of Physics Condensed Matter | IOP PUBLISHING LTD | Published : 2019

Abstract

A hybrid nanostructure where a graphene nanoflake (GNF) is optically coupled to a carbon nanotube (CNT) could potentially possess enhanced sensing capabilities compared to the individual constituents whilst inheriting their high biocompatibility, favourable electrical, mechanical and spectroscopic properties. Therefore, in this paper, we investigate the scattering characteristics of an all-carbon exciton-plasmon nanohybrid which was made by coupling an elliptical GNF resonator to a semiconducting CNT gain element. We analytically model the nanohybrid as an open quantum system using cavity quantum electrodynamics. We derive analytical expressions for the dipole moment operator and the dipole ..

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Grants

Funding Acknowledgements

VS would like to thank the members of A chi L at Monash University including L Kumarapperuma for their encouragement and insightful discussions. The work of VS is supported by the Monash University Institute of Graduate Research.