Plasmon spectroscopy of free-standing graphene films

By T. Eberlein, U. Bangert, R. Nair, R. Jones, M. Gass, A. Bleloch, K. Novoselov, A. Geim, P. Briddon. 2008

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A stable, wideband tunable, near transform-limited, graphene-mode-locked, ultrafast laser (2010, background): “The spectrum is mostly featureless [38, 56, 57] a part from a peak in the UV region due to the exciton-shifted van Hove singularity in the graphene density of states [57, 58].”
Graphene mode-locked ultrafast laser. (2009, background): “18,21 23 The peak in the UV region is a signature of the plasmon.(24) Using the experimental absorption coefficient 1390 L g 1 m 1 at 660 nm,(17,18) we estimate 0.”
Colloquium: Graphene spectroscopy (2014, methodology): “This resonance has been detected by electron energy loss spectroscopy (EELS) and dubbed π plasmon (Eberlein et al., 2008).”
Free-standing graphene at atomic resolution. (2008, background): “Furthermore, single graphene sheets exhibit unique behaviour in their electron energy-loss spectra, and this can be conveniently accessed by highly spatially resolved electron energy-loss spectroscopy (EELS”
Electron energy-loss spectroscopy in the TEM (2008, background): “For single-sheet graphene, these peaks are red-shifted to 4.7 and 14.6 eV (Eberlein et al 2008).”