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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.

FDTD sampled 3D data 导入问题

    • 405700210050
      Subscriber

      我现在想导入新材料的数据进入材料库,导入sampled 3D data需要提供不同波长下的折射率实部Re(index)和虚部Im(index),我知道Re(index)是材料的折射率,Im(index)是吸收系数。

      我目前的疑问是:Im(index)和文献中查到的Absorption Coefficient(单位:cm^-1)是否是一个概念,能否直接使用Absorption Coefficient的值作为材料的Im(index)?

      如果不行,请问FDTD中材料的折射率虚部数值应该如何确定?他的单位是什么?

    • Guilin Sun
      Ansys Employee

      显然不是一个概念啊!不可以!

      FDTD中材料的折射率就是实部加虚部,real(n)+i*imag(n). 折射率没有单位!

      Absorption Coefficient(单位:cm^-1)很可能就是(2*pi/lambda)*imag(n), 其中波长单位用厘米表示,你需要换算一下。

       

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