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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

相位图的表示方式

    • yanshengshao67
      Subscriber

      老师,我想请问一下,为什么我画的相位图,无论是展开相位还是非展开相位,他的走势是从左下往右上,而论文中的相位图是从右上到左下?请问这种从右上到左下的相位图,用FDTD怎么画?

       

    • Guilin Sun
      Ansys Employee

      位相是相对的,选的参考点不一样结果就不一样。一般Lumerical以频率最小点做参考,而论文以波长最小为参考点,刚好相反。

      至于一张图左右都有坐标,我一般建议自己造一个复数矩阵,实部为位相,虚部为强度,你试一下。这样只是为作图,没有什么物理意义。

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