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Fresnel Reflection Coefficient
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The Fresnel reflection coefficient describes the impedance contrast at a change in electrical and magnetic properties in a material. It describes the amplitude of the amount of energy that is reflected and transmitted across the boundary where the change in properties occurs. The classical equation describing this behavior is for a very thick interface, such as the interface between two half spaces. In thin-layered media (thin compared to a wavelength), the classical Fresnel reflection coefficient requires modification.
Fresnel zone...
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