Kuzmenko Alexander V, Yezhov Pavel V
International Center Institute of Applied Optics, National Academy of Science of Ukraine, Kyiv, Ukraine.
Appl Opt. 2007 Oct 20;46(30):7392-400. doi: 10.1364/ao.46.007392.
Two iterative methods for the calculation of double-phase holograms (DPHs) are described. The calculation of DPHs by any of these methods allows one to qualitatively reconstruct the amplitude and phase of a wavefront on a format up to 50% of the spatial size of a reconstruction order (in the previous methods, this format was <or approximately 35%). It is shown that the reconstruction can be realized in this case not only into the 0, +1, or -1 orders, as usual, but also into a half-order (+1/2 or -1/2). The diffraction efficiency of phase-only DPHs is also discussed. The results of numerical and optical experiments are presented.
描述了两种用于计算双相位全息图（DPH）的迭代方法。通过这些方法中的任何一种来计算DPH，都能够在格式上定性地重建波前的幅度和相位，该格式可达重建级空间尺寸的50%（在之前的方法中，此格式小于或约为35%）。结果表明，在这种情况下，不仅可以像往常一样将重建实现到0、+1或 -1级，还可以实现到半级（+1/2或 -1/2）。还讨论了纯相位DPH的衍射效率。给出了数值和光学实验的结果。
