Figure 2
From: Ultra-broadband and compact graphene-on-silicon integrated waveguide mode filters

Graphene’s optical conductivity for wavelengths between 1 to 2 µm and Fermi levels between 0 to 1 eV.
From: Ultra-broadband and compact graphene-on-silicon integrated waveguide mode filters
Graphene’s optical conductivity for wavelengths between 1 to 2 µm and Fermi levels between 0 to 1 eV.