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[2200453024]

Thank you for your response, Niki.

I have read through the post you shared, but I still don't know how to solve my problem.

In my lsf file, the opt_fields is a square with a size of 1.52e-6, and the FDTD region has mesh accuracy set to 3. The opt_fields does not have additional grid settings.

In the Python code, I set:

  size_x = 1520 
  x_points = int(size_x / 20) + 1
  x_pos = np.linspace(-size_x / 2 * 1e-9, size_x / 2 * 1e-9, x_points)
(the same as y)

I'm not sure if this setup is correct. The example seems to be configured similarly, but I don't understand why it 'reports 1 parameter.' Even when I change the shape of the geometry or grid size, it still reports only 1 parameter.