Fig. 6
a Single-layer graphene patterned unit structure. b Absorption spectrum with polarization angle varying from 0° to 90°. c, d The electric field around the structure at fR1, fR2' and fR2 with polarization angles being 0° and 90°, respectively. e Three-dimensional diagram of absorption with polarization angle and frequency. f Polar coordinates diagram variation of the polarization angle from 0° to 180°