| Bessel-Modal Method for Finite-Height Two-Dimensional Photonic Crystal |
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| 作者姓名： | 史俊锋 黄声野 王东生 |
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| 作者单位： | StateKeyLaboratoryofPrecisionMeasurementTechnologyandInstrument,TsinghuaUniversity,Beijing100084 |
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| 摘 要： | By applying the dyadic Green function, the dispersion relation of two-dimensional photonic crystal can be expressed as the cylindrical wave expansions of eigenmodes. With the aid of Green‘s theorem, the plane-wave coefficients of eigenmodes are reconstructed and employed to formulate the scattering matrix of finite-height twodimensional photonic crystal. These operations make the convergence rate very rapid, and reduce the dimension of the scattering matrix. As a demonstration, we present the transmission and electromagnetic field distributions for an InGaAsIn photonic crystal, and investigate their convergence.
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| 关 键 词： | Bessel模型 光子学 晶体 二维模型 Green函数 |
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