Figure 8.

The absorption spectrums of grating-graphene periodic multilayer structure. ‘Layers’, number of graphene layers, which is the odd number between 2 and 26. The frequency ranges from 0 to 60 meV (approximately 14.5 THz). The figure inset is the reflections.

Yuan et al. Nanoscale Research Letters 2014 9:90   doi:10.1186/1556-276X-9-90
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