  We model the low energy dynamics of graphene in the continuum in terms of a
version of Reduced Quantum Electrodynamics restricting fermions to a
(2+1)-dimensional brane, whilst photons remain within the (3+1)-dimensional
bulk. For charge carriers, besides the Dirac mass gap, we consider a Haldane
mass term which is induced by parametrizing an effective parity $\mathcal{P}$
and time-reversal $\mathcal{T}$ symmetry breaking that occurs on the brane when
deformations of the honeycomb array are such that the equivalence between
sublattices is lost. We make use of the relativistic Kubo formula and carry out
an explicit calculation of the transverse conductivity. As expected, the
filling factor is a half (in natural units) for each fermion species.
Furthermore, assuming that a sample of this material is radiated
perpendicularly with polarized monochromatic light of frequency $\omega$, from
the modified Maxwell's equations we study the problem of light absorption in
graphene in terms of the said conductivity. We observe an analog effect to the
Faraday Rotation due the Induced Mass (FRIM)--and not to an external magnetic
field-- in which light penetrating the sample changes its angle of polarization
solely by effect of the induced mass. This effect might be relevant for the
development of optic filters based on mechanical stretching of graphene flakes.
