Two-step phase-shifting interferometry for self-interference digital holography
Tatsuki TaharaApplied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), 4-2-1 Nukuikitamachi, Koganei, Tokyo 184-8795, JapanYuichi KozawaPRESTO, Japan Science and Technology Agency, 4‐1‐8 Honcho Kawaguchi, Saitama 332‐0012, JapanA. IshiiPRESTO, Japan Science and Technology Agency, 4‐1‐8 Honcho Kawaguchi, Saitama 332‐0012, JapanKoki WakunamiApplied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), 4-2-1 Nukuikitamachi, Koganei, Tokyo 184-8795, JapanYasuyuki IchihashiApplied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), 4-2-1 Nukuikitamachi, Koganei, Tokyo 184-8795, JapanRyutaro OiApplied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), 4-2-1 Nukuikitamachi, Koganei, Tokyo 184-8795, Japan
2021en
ABI
Аннотация
We propose a phase-shifting interferometry technique using only two in-line phase-shifted self-interference holograms. There is no requirement for additional recording or estimation in the measurement. The proposed technique adopts a mathematical model for self-interference digital holography. The effectiveness of the proposed technique is demonstrated by experiments on incoherent digital holographic microscopy and color-multiplexed fluorescence digital holography with computational coherent superposition. Two-color-multiplexed four-step phase-shifting incoherent digital holography is realized for the first time, to the best of our knowledge, using the proposed technique.
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