Learning Forum

[xuanlunhuang20]

Hi, I’m trying to use the RCWA example but some problems confuse me. Could anyone help on this:

1. In the “optimizations and sweeps”, there is a sweep named “radius” which will return the E and H field in xy plane. As shown in the picture, in the structure tree, there is no object called “xy_field”. How can it get the E field results.

2. In the script “unit_cell.lsf”, which is for the RCWA simulation, it wants to interpolate the E and H field. However, the extracted Ex from the sweep “radius” only contains 11 points in the third dimension, while that from the sweep “height” is 51 points. This will lead to a mismatch error. Hence, I am wondering if the original script misses a line of code to get the radius from the sweep “radius”. As shown in the following picture, if I add line 82, this error will disappear.

3. A question about RCWA, can RCWA return the output E and H field? As stated in question #1, the E field is extracted from “xy_field” object, not from the RCWA object.

Thanks in advance.

[Guilin Sun]

A1： when did you download the files? I just downloaded and the monitors are there. 

However, if you are using an older version, the monitors are not supported. If this is the case, please upgrade the software.

 

A2: you are right. It seems it uses the radius from height+radius sweep. Please add this line before the interpolation:

radius=E.radius;

I tested and it works fine.

A3: yes, the new version can have field profile monitor that records E and H. Please try the newest version.

 

[xuanlunhuang20]

Ok. Got it, thanks a lot.