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Vol. 6 No. 2 (2014)

Temperature-dependent of Nonlinear Optical Conductance of Graphene-based Systems in High-intensity Terahertz Field

https://doi.org/10.1007/BF03353779
Jing Lv
Laboratory of Thin Film Materials, Beijing University of Technology, Beijing 100022, China
Rui-yang Yuan
Center of Theoretical Physics, Department of Physics, Capital Normal University, Beijing 100048, China
Hui Yan
Laboratory of Thin Film Materials, Beijing University of Technology, Beijing 100022, China

Corresponding Author: Hui Yan

yuanry@cnu.edu.cn

Nano-Micro Letters, Vol. 6 No. 2 (2014), Article Number: 153-162

Abstract

For multi-photon processed with the linear dispersion in the high-intensity terahertz (THz) field, we have systematically investigated the temperature-dependent nonlinear optical response of graphene-based systems, including single layer graphene, graphene superlattice and gapped graphene. In the intrinsic single layer graphene system, it demonstrates that, at low temperature, nonlinear optical conductivities of the thirdand fifth-order are respectively five and ten orders of magnitude larger than the universal conductivity with high-intensity and low frequency THz wave.In the graphene superlattice and gapped graphene systems, the optical responses enhanced because of the anisotropic massless and massive Dirac fermions.

Keywords

Nonlinear Graphene Terahertz Conductance Transmittance
Lv, Jing, Rui-yang Yuan, and Hui Yan. 2014. “Temperature-Dependent of Nonlinear Optical Conductance of Graphene-Based Systems in High-Intensity Terahertz Field”. Nano-Micro Letters 6 (2):153-62. https://doi.org/10.1007/BF03353779.
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