I need help in deriving the Fresnel reflection coefficient in matrix form for the 2 X 2 reflection matrices. After diligently searching online, I noticed I could get the steps in a book called "Optical Waves in Layered Media" (John Wiley & Sons, New Jersey, 2005) by Pochi Yeh (Prof. Emeritus) but I couldn't download it. I will appreciate any guide on this. Thanks in anticipation