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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

关于charge仿真电场分布问题

    • Zhang Yixiao
      Subscriber

      老师您好!我在用charge仿真电场分布。给左边Au电极加电,右边Au电极接地,粉色为硅波导,蓝色为铌酸锂

      加电后电场应当是对称分布(comsol仿真结果是对的),但charge结果中电场没有对称分布,且在正电极处下方很强。

      参考:Thin Film Lithium Niobate Electro-Optic Phase Modulator – Ansys Optics 

      祝好!

    • Guilin Sun
      Ansys Employee

      你确认理论上是对称的吗?

      我看未必。 因为电场从正极到负极,中间掺杂导致损耗。

      你可能还要看看教科书中是否有近似。软件直接求解的是飘逸扩散方程和泊松仿真,没有近似,只要材料特性正确,结果不会有大问题。

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