Effect of retardation on the reflectance properties of the metallic Fibonacci quasi-superlattice

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Abstract
Based on the hydrodynamic model and the transfer-matrix method, the authors have reexamined the reflection properties of the metallic Fibonacci quasi-superlattice by taking account of the retardation effect on the systems. For the normal-incidence s-polarised soft X-rays and extreme ultraviolet, they find that the self-similar reflecting spectrum will be restrained on increasing the retardation, but for the higher-frequency region or at the smaller grazing angle, the self-similarity will still exist for the lower-generation quasi-superlattices.