Research Article

Tunable Terahertz Absorption with Optical Tamm State in the Graphene-Bragg Reflector Configuration

Figure 2

Reflectance and absorption of the graphene-DBR structure as a function of the Fermi energy. (a) Reflectance rate varies with different graphene Fermi energy, where the incident wavelength μm, and the Fermi energy ranging from 0.45 eV to 1.05 eV. (b) Absorption rate varies with different graphene Fermi energy, and the parameters are the same as those in (a).
(a)
(b)