Nonlinear Optical Bistability Based on Surface Plasmons with Nonlinear Dirac Semimetal Substrate
Xinghua Wu,
Yanyan Guo,
Xin Long
et al.
Abstract:In this paper, we theoretically investigated the low-threshold and controllable optical bistability (OB) of a graphene-based Otto configuration with a nonlinear three-dimensional Dirac semimetal (3D DSM) as the substrate. The combined effect of the excitation of surface plasmon polaritons (SPPs) in graphene and the very high third-order nonlinear conductivity of the 3D DSM enabled this scheme to achieve a relatively low optical bistability threshold. At the same time, this simple multilayer structure showed th… Show more
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