Figure 3
From: Excitation of surface electromagnetic waves in a graphene-based Bragg grating
(a) Experimental reflectance diagram (as a function of incident angle) acquired using prism coupling technique at optical frequency, where the blue line is for eye guide.The observed resonance angle is 70.7° and (b) Simulated reflectance date by solving the Fresnel's equations for multilayer structure, estimated resonance angle is 70.8°.
