Extraction of optimized parameters for Si_(0.6)Ge_(0.4)material and SPP mode propagation through Si_

• 作 者: Md.Ghulam Saber Rakibul Hasan Sagor
• 机 构: Department of Electrical and Electronic Engineering,Islamic University of Technology,
• 出 处: Optoelectronics Letters
• 发表日期: 2013年06期
• 关键词: waveguide dielectric Lorentz silver symmetric permittivity plasmon Bragg Debye o

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.

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. Finaally 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 Si0.6Ge 0.4 for further verifying the extracted parameters.