We present perturbation theory for analysis of generic third-order nonlinear processes in graphene-integrated photonic structures. The optical response of graphene is treated as the nonlinear boundary condition in Maxwell's equations. The derived models are applied for analysis of third-harmonic generation in a graphene-coated dielectric microfiber. An efficiency of up to a few percent is predicted when using subpicosecond pump pulses with energies of the order of 0.1 nJ in a submillimeter-long fiber when operating near the resonance of the graphene nonlinear conductivity ℏω=(2/3)EF.
|Number of pages||10|
|Journal||Physical Review A|
|Early online date||6 Jul 2016|
|Publication status||Published - 31 Jul 2016|
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- Department of Physics - Senior Lecturer
- Centre for Photonics and Photonic Materials
- Condensed Matter Physics CDT
Person: Research & Teaching