Fig. 4From: Raman Mapping Analysis of Graphene-Integrated Silicon Micro-Ring ResonatorsGraphene Fermi level determined (from \( \surd \frac{A_G}{A_{2D}} \)) as a function of spatial coordinate along line scans for (top) 10-μm- and (bottom) 20-μm-radius MRR devices (note the break in the bottom x-axis). Fitted (Gaussian) peak integrated areas and widths are shown for comparison along with where the line-scan data was taken on the devicesBack to article page