I have a MWIR coating on a germanium substrate (with internal transmittance set to 1.0) and I’m getting double-sided transmission greater than 1.0. How is this possible? This result disagrees with Code V, Filmstar and Essential Macleod. Even if I vary the layer thicknesses by 3%, transmission still can exceed 1.0 at angles of incidence less than or equal to 20 degrees.
Best answer by MichaelH
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