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arXiv · 1110.4869

Giant optical nonlinearity of graphene in a strong magnetic field

Xianghan Yao·Alexey Belyanin
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Abstract

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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Xianghan Yao, Alexey Belyanin. 2011-10-21. Giant optical nonlinearity of graphene in a strong magnetic field. https://doi.org/10.1103/physrevlett.108.255503

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