Modes Interference

This window can only be opened from the Modes page for structures with a single layer containing the grating. This window provides the user with the possibility to calculate the dependence of the reflection and transmission parameters of the zero diffraction order on the thickness of the layer for the selected group of grating modes, and also to study the dependence on the same parameter (over the layer depth) the modulus and phase or real and imagine parts of complex coefficients for the selected grating mode. These coefficients are defined near Cover or Substrate interfaces for adequate direction of mode propagation.
The user can select a group of modes either by specifying two selection criterion parameters, or simply by listing the global indexes of the modes group. The numbering of modes on this window is considering as “local”. The term "global" refers to the numbering of the modes on the Modes page.
The refresh button initializes the selection and fills all the necessary vectors and matrices with the correct values from Modes page. The format for displaying data is also inherited from this page.
The user has the opportunity to inspect these values or to proceed to the investigation of the dependencies on the thickness of the layer.
The scan results of the main code and of the Interference dialog are displayed in the same window. So, the user can compare these scanning.

Note 1 In the collinear case, the polarization is given on the General page, and in the conical geometry to the TE(s) and TM(p) polarizations corresponds the indices 0 and 1. Description of the calculation method is in the Appendix.