Photonics

Photonics

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Absorption in RCWA

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    • sagar
      Subscriber

      How to get absorption in RCWA solver? I want to do parameter optimization by varying different parameters for absorption. Can you please suggest how to do it? 

    • Guilin Sun
      Ansys Employee

      You will need to get RCWA result in the analysis script inside "model", and output it in the "Output" as usual:

      then you can sweep the layer thickness. Please try.

    • sagar
      Subscriber

      But Rp and Rs are the reflections corresponding to p-polarized and s-polarized light. But I want to calculate absorption. One way to calculate is (1-Rp-Tp). But is it possible to calculate through the volume integration over the region (the way we do  in FDTD)? 

    • Guilin Sun
      Ansys Employee

      You are right that currently you can use (1-Rp-Tp).

      Please note that the volume integration method is less accurate since it involves more data calculation. If you are not calcualting the spatial-absorption distribution, using (1-Rp-Tp) should be sufificient.

      Improvement for RCWA outputs is under the way.

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