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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

关于石墨烯求反射系数进而求等效电导率的问题;

    • wuqi
      Subscriber

      老师您好,最近需要求一个石墨烯的有效电导率,论文用CST计算了反射系数,并利用如下公式计算了等效电导率;在FDTD中是否可以计算:

      主要有两个问题:

      1.CST中直接可以获得反射系数,在FDTD中是否必须使用S参数分析组来求得,我是将下图所示的两个介质空间无限延伸到FDTD仿真区域外,二维石墨烯位于中间部位,如下右图所示,利用两个监视器分别求得相位和反射振幅,结合后求得反射系数。

      2. 上述这种方式是否是正确求解反射系数的方法? 如过需要用S参数组计算,超材料的span设置为0?二维石墨烯没有厚度? 感谢老师!

    • Guilin Sun
      Ansys Employee

      你可以用监测电场来计算振幅反射系数。不过,你需要修正传播位相, 参见 Smith 超材料例子,

      https://optics.ansys.com/hc/en-us/articles/360042095873-Metamaterial-S-parameter-extraction

      https://optics.ansys.com/hc/en-us/articles/360042097393-Metamaterial-parameter-extraction-Smith

    • Andrea Ferrason
      Subscriber

       

      It was really difficult for me, I couldn’t tunnel rush solve it

       

    • Guilin Sun
      Ansys Employee

      non technical link was removed and this post is closed.

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