Fractional Talbot imaging of phase gratings with hard x rays.
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.
Cloetens
P
P
Guigay
J P
JP
De Martino
C
C
Baruchel
J
J
Schlenker
M
M