Volume 92, Number 6, December 2010
|Number of page(s)||5|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||05 January 2011|
Mechanism for graphene-based optoelectronic switches by tuning surface plasmon-polaritons in monolayer graphene
Centro de Física e Departamento de Física, Universidade do Minho, Campus de Gualtar - Braga 4710-057, Portugal, EU
Accepted: 16 December 2010
It is shown that one can explore the optical conductivity of graphene, together with the ability of controlling its electronic density by an applied gate voltage, in order to achieve resonant coupling between an external electromagnetic radiation and surface plasmon-polaritons in the graphene layer. This opens the possibility of electrical control of the intensity of light reflected inside a prism placed on top of the graphene layer, by switching between the regimes of total reflection and total absorption. The predicted effect can be used to build graphene-based optoelectronic switches.
PACS: 81.05.ue – Graphene / 72.80.Vp – Electronic transport in graphene / 78.67.Wj – Optical properties of graphene
© EPLA, 2010
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