Rigorous Coupled Wave Analisys - help

[Krzysztow]

Hi all,

recently I came accross a problem with RCWA. I tried to simulate diffraction efficiencies for transmission dielectric grating, a binary one, and couldn't finish it. I use a book by Soifer "Methods for Computer Design of Diffractive Optical Elements" and it's not clearily written, at least to me. The author introduces some subscripts what makes that scalar becomes a vector and a vector turns into a matrix. To me it doesn't have sense (of course i does). Has anyone used this book and could shortly explain, for example TE-mode case. Or if You have some good other explanations, or notes, anything, please propose it. In a case, someone would like to see the part of the book I can make photos of that chapter and upload it.

Thanks in advance,
Krzysztow.

 

[Krzysztow]

Hi once more,

I got the point of using these additional subscripts, I'm new in that and now it's obvious. But I still have some problems, I tried to understand the derivation, not to write it straightforward into Matlab but understand as well. And I found that my derivation doesn't agreefully with the book. Can You explain to me:
1) how one can get from the set of equations 3.138 & 3.139 to the set 3.140 & 3.141. I got something for 3.140 like in equation (*).
2) where did He get set 3.150 from? It seems as if assumption (**) or (3.127) is not valid anymore. However then He shouldn't write 3.152.
If assumption (3.127) is valid for modulation zone, then result for coefficients is given by (***)

Please, help me. It's not I want anyone to do my work. I just dwell for too long on it. Thank in advance!\][/quote][/code]

 

[Krzysztow]

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[Krzysztow]

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