Opt Lett. 2021 Feb 1;46(3):669-672. doi: 10.1364/OL.414083.
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.
我们提出了一种仅使用两个在线相移自干涉全息图的相移干涉测量技术。在测量中不需要额外的记录或估计。所提出的技术采用了自干涉数字全息术的数学模型。通过非相干数字全息显微镜和计算相干叠加的彩色复用荧光数字全息术的实验验证了该技术的有效性。据我们所知，首次使用所提出的技术实现了双色复用四步相移非相干数字全息术。
