Phase-shifting radial-shearing digital holography with Greek-ladder zone plates
2018
Holography has been widely applied in fields of imaging and measurement, but the optical setup of traditional phase-shifting holography is complicated. Here, a kind of phase-shifting radial-shearing holography with Greek-ladder zone plates is presented, which largely simplifies the optical configuration for holographic recording and enhances the stability of system. A 1951 U.S. Air Force resolution test target is measured by experiment to verify the validity of our proposed method. Benefiting from amplitude-only diffractive lenses and high stability of the common path, the phase-shifting radial-shearing interference with Greek-ladder zone plates has great potential in biological imaging and x-ray holography for the next generation of synchrotron light sources.
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