研究目的
Investigating the combined effect of the nonlinearities in both the 2D material and the ambient dielectric media on the dispersion of the surface plasmon-polaritons (SPs).
研究成果
The study concludes that the wavelength and propagation distance of surface plasmons decrease due to the nonlinearity of the surrounding dielectric, while the effect of the nonlinearity of the 2D material depends on the signs of the real and imaginary parts of the third-order conductivity. The dispersion relations obtained by simply replacing the permittivity of the dielectric medium by its nonlinear counterpart in the linear regime are not accurate. The analysis is applied to doped graphene, making predictions for the surface plasmon wavelength and propagation distance.
研究不足
The study is limited to isotropic 2D materials with inversion symmetry and does not examine high-harmonic and supercontinuum generation, as well as other nonlinear phenomena related to frequency conversion.
1：Experimental Design and Method Selection:
The study uses analytical methods to derive the dispersion relations for TE and TM surface plasmon-polaritons in a nonlinear 2D conducting material with inversion symmetry between two Kerr-type dielectric media. Maxwell’s equations are employed within the quasielectrostatic, weakly dissipative regime.
2：Sample Selection and Data Sources:
The analysis focuses on a 2D conducting material with inversion symmetry, such as graphene, lying between two unbounded dielectric media.
3：List of Experimental Equipment and Materials:
The study is theoretical and does not specify experimental equipment or materials.
4：Experimental Procedures and Operational Workflow:
The methodology involves solving Maxwell’s equations analytically for the given geometry and material properties to obtain the dispersion relations.
5：Data Analysis Methods:
The analysis includes comparing the derived dispersion relations with those obtained in the linear regime and discussing the effects of nonlinearities.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
