Abstract

A general numerical technique for analyzing diffraction gratings of arbitrary groove shape as electromagnetic boundary-value problems is suggested. The method yields the induced surface current, from which the energies in various radiating orders can be conveniently obtained. Computed results are compared to the theoretical as well as the experimental results available in the literature. The accuracy and versatility of the technique are demonstrated together with its economy and convenience.

© 1971 Optical Society of America

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