Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

米氏散射系数

    • Shan mengzhu
      Subscriber

      老师,请问FDTD中可以计算周期性结构中的纳米盘的米氏散射系数频谱图吗,以及分别计算ED(电偶极子共振)和MD(磁偶极子共振)模式系数随频率的变化?像下图所示的这种图,此图是无限长椭圆柱的散射分析相关图。

    • Guilin Sun
      Ansys Employee

      模式系数什么定义?

      ED(电偶极子共振)和MD(磁偶极子共振)应该是对应散射曲线峰值波长的场类似于这种偶极子辐射,参见 Ansys Insight: 极子四极子六极子八极子十极子等的散射仿真

      周期结构要做这是散射辐射图可能比较成问题,因为周期结构的远场是离散的衍射级,不大可能出现这种辐射图。虽然我没有参考文献,但是根据我的知识应该是没有这种辐射图的,除非是随机粒子,但是也是分立的,请再琢磨。

    • kalylcie cie
      Subscriber

       

      According to the simulated field distribution, the Mie scattering coefficient among us is calculated using the corresponding scattering formula. Mie scattering coefficients usually include scattering cross section, phase and amplitude.

       

    • Guilin Sun
      Ansys Employee

      non technical link is removed and this post is closed.

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