Please use this identifier to cite or link to this item:
|Title:||Shifting of surface plasmon resonance due to electromagnetic coupling between graphene and Au nanoparticles|
|Source:||Niu, J., Shin, Y.J., Son, J., Lee, Y., Ahn, J.-H., Yang, H. (2012-08-27). Shifting of surface plasmon resonance due to electromagnetic coupling between graphene and Au nanoparticles. Optics Express 20 (18) : 19690-19696. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.20.019690|
|Abstract:||Shifting of the surface plasmon resonance wavelength induced by the variation of the thickness of insulating spacer between single layer graphene and Au nanoparticles is studied. The system demonstrates a blue-shift of 29 nm as the thickness of the spacer layer increases from 0 to 15 nm. This is due to the electromagnetic coupling between the localized surface plasmons excited in the nanoparticles and the graphene film. The strength of the coupling decays exponentially with a decay length of d/R = 0.36, where d is the spacer layer thickness and R is the diameter of the Au nanoparticles. The result agrees qualitatively well with the plasmon ruler equation. Interestingly, a further increment of the spacer layer thickness induces a red-shift of 17 nm in the resonance wavelength and the shift saturates when the thickness of the spacer layer increases above 20 nm. © 2012 Optical Society of America.|
|Source Title:||Optics Express|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 5, 2017
WEB OF SCIENCETM
checked on Nov 16, 2017
checked on Dec 10, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.