  Using a realistic quantum master equation we show that the resonance
fluorescence spectra of a two-level artificial atom (quantum dot) can be tuned
by adjusting its photonic local density of states via biasing of one or more
graphene monolayers. The structured photon reservoir is included using a photon
Green function theory which fully accounts for the loss and dispersion. The
field-driven Mollow triplet spectrum can be actively controlled by the graphene
bias in the THz frequency regime. We also consider the effect of a dielectric
support environment, and multiple graphene layers, on the emitted fluorescence.
Finally, thermal bath effects are considered and shown to be important for low
THz frequencies.
