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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.
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  3. 请问如何在FDTD中仿真硅基波导的光学克尔效应？

请问如何在FDTD中仿真硅基波导的光学克尔效应？

    • April 3, 2022 at 3:51 pm
      20082304052
      Subscriber
      image.png
    • April 4, 2022 at 3:01 pm
      Guilin Sun
      Ansys Employee
      如果仅仿真Kerr效应，只需要使用Kerr模型即可，不要使用chi3/chi2，因为后者是为其它现象设计的。虽然理论上让Raman系数为零没有问题，在算法上可能有些问题。
    • April 4, 2022 at 3:11 pm
      20082304052
      Subscriber
      好的，谢谢老师！那如果还要仿真硅基波导的双光子吸收，我该怎么设计材料呢？
    • April 5, 2022 at 1:53 am
      Guilin Sun
      Ansys Employee
      双光子吸收two-photon absorption涉及到能级跃迁吧？这个需要特殊的材料模型，很可能需要自己开发。好像还涉及荧光辐射，这个还需要新的算法。
      参见　FDTD Analysis of Two-Photon Absorption and Free-Carrier Absorption in Si High-Index-Contrast Waveguides
      Journal of Lightwave Technology Vol. 25, Issue 9, pp. 2495-2501 (2007)
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