In analogy with Wigner time delay in quantum scattering, it is shown that a x-ray under Bragg diffraction is delayed by a quantity associated to the derivative of the reflectivity phase. This effect is on the femtosecond scale the same delivered by forthcoming generation FEL x-ray source.
© 2005 Optical Society of America
V. Mocella, "Time Delay in x-ray diffraction," in Frontiers in Optics, OSA Technical Digest Series (Optical Society of America, 2005), paper JME5.
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