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

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

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Jing et al. has theoretically investigated the temperature-dependent nonlinear optical response of graphene-based systems, including single layer graphene, graphene superlattice and gapped graphene in the high-intensity terahertz (THz) field.

They found that in the intrinsic single layer graphene system, at low temperature, the third- and fifth-order nonlinear optical conductivities are respectively more than five and ten orders of magnitude, larger than the universal conductivity at the intensity 1000 W/cm2 and the frequency below 1THz wave. In the graphene superlattice and gapped graphene systems, the optical responses enhanced because of the anisotropic massless and massive Dirac fermions by a factor of 1/λ. These properties make graphene-based systems a potential candidate as a terahertz detector.

Original article citation

Jing Lv, Rui-yang Yuan, Hui Yan, “Temperature-dependent of Nonlinear Optical Conductance of Graphene-based Systems in High-intensity Terahertz Field”, Nano-Micro Lett. 6(2), 153-162(2014). http://dx.doi.org/10.1007/BF03353779

A Highlight from Changli Sun for NMSTR.

 

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