A method of hard X-ray phase-shifting digital holography

A new method of phase-shifting digital holography is demonstrated in the hard X-ray region. An in-line-type phase-shifting holography setup was installed in a 6.80 keV hard X-ray synchrotron beamline. By placing a phase plate consisting of a hole and a band at the focusing point of a Fresnel lens, the relative phase of the reference and objective beams could be successfully shifted for use with a three-step phase-shift algorithm. The system was verified by measuring the shape of a gold test pattern and a silica sphere.

Source: Journal of Synchrotron Radiation - June 20, 2016 Category: Physics Authors: Park, S.Y.Hong, C.K.Lim, J. Tags: X-ray imaging phase measurement digital holography phase-shifting microscopy research papers Source Type: research