Learning Forum

[sagar]

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]

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]

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]

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.