X-ray interferometry with microelectronvolt resolution.
We demonstrate an interferometer for hard x rays with two back-reflecting sapphire crystal mirrors--a prototype x-ray Fabry-Pérot interferometer. A finesse of 15 and 0.76 mu eV broad Fabry-Pérot transmission resonances are measured by the time response of the interferometer. Interference patterns are observed directly in spectral dependences of reflectivity.
Shvyd'ko
Yu V
YV
Institut für Experimentalphysik, Universität Hamburg, D-22761 Germany. Yuri.Shvydko@desy.de
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Khachatryan
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