Third order optical nonlinearity of graphene

被引：313

作者：

Cheng, J. L. ^{[1
,2
,3
]}

Vermeulen, N. ^{[3
]}

Sipe, J. E. ^{[1
,2
]}

机构：

[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[2] Univ Toronto, Inst Opt Sci, Toronto, ON M5S 1A7, Canada

[3] Vrije Univ Brussel, Brussels Photon Team B PHOT, Dept Appl Phys & Photon IR TONA, B-1050 Brussels, Belgium

来源：

NEW JOURNAL OF PHYSICS | 2014年 / 16卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

graphene; optical nonlinearities; four wave mixing; coherent control; third harmonic generation; BILAYER GRAPHENE; SEMICONDUCTORS; OPTOELECTRONICS; ABSORPTION; SHEETS;

D O I：

10.1088/1367-2630/16/5/053014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We perform a perturbative calculation of the third order optical conductivities of doped graphene, using approximations valid around the Dirac points and neglecting effects due to scattering and electron-electron interactions. In this limit analytic formulas can be constructed for the conductivities. We discuss in detail the results for third harmonic generation, the Kerr effect and two-photon carrier injection, parametric frequency conversion, and two-color coherent current injection. We find a complicated dependence on the chemical potential and photon energies. The linear dispersion causes resonances over a wide range of photon energies, and it is possible to obtain large optical nonlinearities by tuning the chemical potential.

引用

页数：16

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