Figure 6: Analysis of the FTIR spectra of ethanol-based graphene saturable absorber (Eth-GSA).
From: Terahertz saturable absorbers from liquid phase exfoliation of graphite
(a) Dependence on Γib. FTIR transmission spectrum superimposed to fit function (Γib=200 meV, red line) and a set of functions obtained by varying Γib in the range 50–400 meV. (b) Dependence on τ. FTIR transmission spectrum superimposed to fit function (τ=1.64 fs, red line) and a set of functions obtained by varying τ in the range 0.8–4.0 fs. (c) Dependence on EF. FTIR transmission spectrum superimposed to the fit function (EF=181 meV, red line) and a set of functions obtained by varying EF in the range 100–200 meV.
