Replacement Of A Very Fine Grating By A Stratified Layer : Homogenization Techniques, And The Multiple-Scale Method

If the truth must be told, this paper does not contain novel and unpublished results. Two years ago, we published a long paper' on the same subject in Electromagnetics. But on the one hand, this paper requires a very good background in functional analysis and, on the other hand, Electromagnetics is probably not the favorite review for most engineers. Here our purpose is only to inform practical physicists of theoretical conclusions which, in our opinion, are worth knowing. The reader interested by the theoretical aspects of homogenization theory can refer to 1.