A hybrid structure of a graphene nanomesh with the gold nanodisks is studied to enhance the light absorption by the localized surface plasmon resonance. From the reflection spectra of the visible range for graphene nanomesh samples without and with nanodisks, it is found that the absorption of graphene nanomesh structures is greatly enhanced in the presence of gold nanodisks around the resonance wavelength. Simulation results based on the finite-difference time-domain method support the experimental observations. This study demonstrates the potential of constructing graphene based photodetectors with a high light absorption efficiency and wavelength selectivity.
Localized surface plasmon resonance in graphene nanomesh with Au nanostructures
Yang Wu, Jing Niu, Mohammad Danesh, Jingbo Liu, Yuanfu Chen, Lin Ke, Chengwei Qiu, Hyunsoo Yang; Localized surface plasmon resonance in graphene nanomesh with Au nanostructures. Appl. Phys. Lett. 25 July 2016; 109 (4): 041106. https://doi.org/10.1063/1.4959833
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