coupled wave expansion matlab code

Hello. Does anyone have Matlab code on the following analysis methods for photonic crystals?

Plane Wave Admittance Method

Momentum Space Design of High-Q Photonic Crystal Optical Cavities

Plane Wave Expansion Method for Photonic Crystal Slabs

The Plane Wave Admittance Method is essentially the same as what is called:
- Rigorous Coupled-Wave Analysis
- Fourier Modal Method
- Transfer Matrix Method with a Plane Wave Basis

I know there are codes available online for these.

The second method I do not have any experience with.

The third code, and PWEM in general, search for MIT Photonic Bands. It is free and is perhaps the most powerful photonic crystal modeling code available.

-tip

Do you know where to get those codes? Can you post any that you might have on this topic? Thank you.

For PWEM, here is a link the MIT Photonic bands software.

http://ab-initio.mit.edu/wiki/index....Photonic_Bands

For RCWA/PWAM/FMM, look at GD-calc

http://software.kjinnovation.com/GD-Calc.html

-Tip