金属和Kerr非线性介质界面上表面等离子体激元的色散关系
The dispersion relation for surface plasmon at a metal-Kerr nonlinear medium interface
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摘要: 从麦克斯韦方程组出发,结合边界条件,分别得到TM波和TE波在金属和Kerr非线性介质界面上表面等离子体激元的色散关系.由于非线性的存在,TM波的色散关系变得复杂,与光强、非线性系数有关.和线性情况一样,此界面不存在TE波.Abstract: The dispersion relation of transverse magnetic (TM) wave and transverse electric (TE) wave for surface plasmon at a metal-Kerr nonlinear medium interface are analyzed based on the Maxwell equations and the boundary conditions.The dispersion relation of TM wave is complex, due to the nonlinearity, and it has a dielectric coefficient and intensity-dependent expression.However, the TE wave does not exist at this interface as in the linear case.
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