Dispersion curves and mode analysis

[hadishamkhi]

Hello, Congratulations on developing TORCWA!

1- Would you please advise on how to calculate mode dispersion curves of an individual layer, and mode evolution with geometric or materials parameters? Though I am new to the RCWA method, but I understand that computing eigenmodes of individual layer is the first step in the implemented algorithm. So, would it be possible to plot eigenvalues maps (such as Dirac cones) without the need to perform reflection/transmission computations?

2- A follow up on the first question, what is the best approach to track modes coupling evolutions across multiple layers with a geometric tuning in one of them?

My apologies if my questions are not actually issues with the package, but to my understanding providing hints or examples to tackle these questions could be of great help to a broad audience.

Thank you, Hadi