Abstract
The authors consider an observable-based parametrization of wave scattering for a class of two-dimensional slit-coupled cavity configurations with interior loading. In view of the structural features, the parametrization is chosen in terms of internal guided modes and external ray fields, coupled self-consistently through a narrow slit. Reduced formulations which are applicable when the interior is, or is not, near a resonance are described. These reduced formulations involve, respectively, anomalous and regular modifications of conventional geometrical theory of diffraction to account for high-Q resonant coupling. The problems of interest involve plane wave scattering from structures with exterior-interior coupling. >
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