The Lorentz model and modified Debye model(MDM)parameters for Si0.6Ge0.4are presented.A nonlinear optimization algorithm is developed.The obtained parameters are used to determine the complex relative permittivity of ...The Lorentz model and modified Debye model(MDM)parameters for Si0.6Ge0.4are presented.A nonlinear optimization algorithm is developed.The obtained parameters are used to determine the complex relative permittivity of Si0.6Ge0.4,and compared with the experimental data for validation.Finally the obtained parameters are used to analyze the properties of symmetric surface plasmon polariton(SPP)mode propagation in a dielectric-metal-dielectric(DMD)material constructed with silver(Ag)and Si0.6Ge0.4for further verifying the extracted parameters.展开更多
文摘The Lorentz model and modified Debye model(MDM)parameters for Si0.6Ge0.4are presented.A nonlinear optimization algorithm is developed.The obtained parameters are used to determine the complex relative permittivity of Si0.6Ge0.4,and compared with the experimental data for validation.Finally the obtained parameters are used to analyze the properties of symmetric surface plasmon polariton(SPP)mode propagation in a dielectric-metal-dielectric(DMD)material constructed with silver(Ag)and Si0.6Ge0.4for further verifying the extracted parameters.