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The Goos-Hänchen effect at Bragg diffraction
Kenji Tamasaku1, Tetsuya Ishikawa
1RIKEN Harima Institute/SPring-8, Mikazuki, Hyogo 679-5148, Japan. tamasaku@postman.riken.go.jp
Abstract:
The strong incident-angle dependence of the phase of complex reflectivity causes a shift of the reflected beam from the geometrically expected path. This effect, known as the Goos-Hänchen effect in the visible region, was observed for Bragg-case diffraction in the hard X-ray region. The shift was found to be in good agreement with the theory.