Second Harmonic Generation in Graphene
M. M. Glazov
Ioffe Physical-Technical Institute RAS, 194021 St. Petersburg, Russia
We report on theoretical study of second harmonic generation
in graphene. Phenomenological analysis based on symmetry arguments is
carried out. It is demontrated, that in ideal graphene samples second
harmonic generation is possible only if the radiation wave vector or
its magnetic field is taken into account.
Microscopic theory is developed for the classical regime of radiation
interaction with electrons, where photon energy is much smaller than
the charge carriers characteristic energy. It is demonstrated, that
the emitted radiation can be strongly circularly polarized for the
linearly polarized incident wave.