A method of hard X‐ray phase‐shifting digital holography |
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| Authors: | So Yeong Park Chung Ki Hong Jun Lim |
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| Affiliation: | 1. Department of Physics, POSTECH, 77 Cheongam-Ro, Pohang, Kyoungbuk37673, South Korea;2. Beamline 3. Division, Pohang Light Source, Pohang, Kyoungbuk37673, South Korea |
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| Abstract: | 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. |
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| Keywords: | X‐ray imaging phase measurement digital holography phase‐shifting microscopy |
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