Giant optical nonlinearity of graphene in a strong magnetic field

Details Giant optical nonlinearity of graphene in a strong magnetic field Giant optical nonlinearity of graphene in a strong magnetic field

2011-10-21

arxiv.org/abs/1110.4869v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4pages, 2 figures

Scientific paper

We present quantum-mechanical density-matrix formalism for calculating the nonlinear optical response of magnetized graphene, valid for arbitrarily strong magnetic and optical fields. We show that magnetized graphene possesses by far the highest third-order optical nonlinearity among all known materials. The giant nonlinearity originates from unique electronic properties and selection rules near the Dirac point. As a result, even one monolayer of graphene gives rise to appreciable nonlinear frequency conversion efficiency for incident infrared radiation.

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