Learning Forum

[hany]

Running bandstructure simulation with FDTD v2023.R2.1. 

When running bandstructure analysis, always get the following error:

Error: prompt line 53: Unable to access data in unallocated matrix
Error: Result spectrum: variable not found.

fs(1:size_fs(1),1) = fs_detailed(:,1);

 

 

[Devika]

Hello Hany, 

Aplologies for the delayed response. Please let me know which device are you testing and are you using FDTD?

Share maximum information possible. 

Thanks and regards

Devika

[hany]

I am running bandstructure simulation on a waveguide grating using FDTD. I am using the bandstructure analysis solver provided in the FDTD. I use the default values for t_start and max_band. 

To me, it seems that the analysis code has been changed from 2020 version to now. In previous version, I don't see this t_start and max_band parameters in the analysis setting of bandstructure. And I cannot find anywhere in Lumerical's website about how these parameters should be set.