Fig. 6. (a) Schematic demonstration of biaxially deformed graphene structures on the SiO2 nanospheres with an air gap Ga and wrinkle period Tg = DS + Ga. Optical absorption (b) and transmission (c) spectra for the corrugated graphene structures with DS = 80 nm and Ga = 5 nm. (d) Near-field intensity distributions of the edge graphene plasmon modes at resonance wavelengths of 7.9 and 10.85 µm, respectively. (e) Optical absorption spectra for the corrugated graphene structures with varying Ga from 5 to 150 nm and DS = 80 nm. The upper plots show a zoomed-in view of the resonance wavelength shifts of the edge plasmon modes by varying Ga. (f) Scaling of the resonance wavelength of the edge plasmon mode at 10.85 µm with respect to wrinkle period Tg.
