It is shown how the electric field amplitude distributions that are due to radiation incident upon multilayer coatings containing magnetic (gyrotropic) films can be calculated, with particular emphasis on the magneto-optical components. The relevance of the electric field amplitudes for the evaluation of absorption in the layers, interfacial scattering, and the signal-to-noise ratio associated with the detection of magneto-optical effects is discussed. Two sets of examples of electric field amplitude distributions in multilayer coatings are given, and it is concluded that multilayer structures designed to enhance the shot-noise-limited signal-to-noise ratio in magneto-optical recording may also increase the noise associated with surface roughness scattering.
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Gamble et al. (1988) studied this question.
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