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X-Ray optics

Clarity through a keyhole

The requirement for an object to be surrounded by empty space when imaged by coherent X-ray diffraction was once thought to be a fundamental limitation. A variant of coherent diffractive imaging proves this not to be the case, and substantially widens its potential use.

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Figure 1: Coherent diffraction imaging in the far- and near-field.

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Hajdu, J., Maia, F. Clarity through a keyhole. Nature Phys 4, 351–353 (2008). https://doi.org/10.1038/nphys952

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