Review Article
Recent Advances in Graphene-Assisted Nonlinear Optical Signal Processing
Figure 5
(a) Optical microscope (OM) image of graphene transferred on a SiO2/Si substrate. (b) Scanning electron microscope (SEM) image of graphene transferred on silicon-on-insulator (SOI). (c) Typical Raman spectrum of single-layer graphene on a SiO2/Si substrate (excitation wavelength: 532 nm).
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