# Theory of third-harmonic generation in graphene: A diagrammatic approach

@article{Rostami2016TheoryOT, title={Theory of third-harmonic generation in graphene: A diagrammatic approach}, author={Habib Rostami and Marco Polini}, journal={Physical Review B}, year={2016}, volume={93}, pages={161411} }

We present a finite-temperature diagrammatic perturbation theory of third harmonic generation (THG) in doped graphene. We carry out calculations of the third-order conductivity in the scalar potential gauge, highlighting a subtle cancellation between a Fermi surface contribution, which contains only power laws, and power-law contributions of inter-band nature. Only logarithms survive in the final result. We conclude by presenting quantitative results for the up-conversion efficiency at zero and… Expand

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