Impedance-Matched Grazing-Incidence Films: Pure Nuclear Reflections, Resonant Filtering of Synchrotron Radiation, and X-Ray Interferometry

The purpose of the Letter is to point out the possibility of a new interference technique in x-ray and $\gamma$-ray optics—the simple idea of impedance-matched grazing-incidence films—and to discuss applications to pure nuclear coherent reflections, resonant filtering of synchrotron radiation, and x-ray interferometry.