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. 1997 Jul 15;22(14):1059-61.
doi: 10.1364/ol.22.001059.

Fractional Talbot imaging of phase gratings with hard x rays

P Cloetens, J P Guigay, C De Martino, J Baruchel, M Schlenker

Fractional Talbot imaging of phase gratings with hard x rays

P Cloetens et al. Opt Lett. .

Abstract

Fractional Talbot images of optical gratings acting as periodic phase objects have been obtained by use of x rays of 0.069-nm wavelength from a third-generation synchrotron radiation source. Quantitative evaluation of the data obtained as a function of defocusing distance provides information on the lateral coherence of the beam as well as on the phase modulation in the object.

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