Graphene induced tunability of the surface plasmon resonance

Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3683534

Title:	Graphene induced tunability of the surface plasmon resonance
Authors:	Niu, J. Jun Shin, Y. Lee, Y. Ahn, J.-H. Yang, H.
Issue Date:	6-Feb-2012
Citation:	Niu, J., Jun Shin, Y., Lee, Y., Ahn, J.-H., Yang, H. (2012-02-06). Graphene induced tunability of the surface plasmon resonance. Applied Physics Letters 100 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3683534
Abstract:	Tunability of the surface plasmon resonance wavelength is demonstrated by varying the thickness of Al 2O 3 spacer layer inserted between the graphene and nanoparticles. By varying the spacer layer thickness from 0.3 to 1.8 nm, the resonance wavelength is shifted from 583 to 566 nm. The shift is due to a change in the electromagnetic field coupling strength between the localized surface plasmons excited in the gold nanoparticles and a single layer graphene film. In contrast, when the graphene film is absent from the system, no noticeable shift in the resonance wavelength is observed upon varying the spacer thickness. © 2012 American Institute of Physics.
Source Title:	Applied Physics Letters
URI:	http://scholarbank.nus.edu.sg/handle/10635/82424
ISSN:	00036951
DOI:	10.1063/1.3683534
Appears in Collections:	Staff Publications

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