Fractional Talbot Imaging of Phase Gratings with Hard X Rays

Overview

Journal Opt Lett

Specialty Ophthalmology

Date 1997 Jul 15

PMID 18185750

Citations 22

Authors

P Cloetens

J P Guigay

C De Martino

J Baruchel

M Schlenker

Affiliations

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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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