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Serebriakov, A. (author), Maksimov, E. (author), Bociort, F. (author), Braat, J. (author)The subject of birefringence induced by spatial dispersion (BISD), also called intrinsic birefringence, recently became an important issue for 157-nm lithography. For the deep UV range, because of intrinsic absorption, only crystalline materials can be used as optical materials for lens manufacturing. The physical properties of crystals are...conference paper 2004