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Tags : digital holography   phase-only elements   iterative techniques  

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Reference : Alexander V. Kuzmenko and Pavel V. Yezhov "Iterative algorithms for off-axis double-phase computer-    more

Reference : Alexander V. Kuzmenko and Pavel V. Yezhov "Iterative algorithms for off-axis double-phase computer-generated holograms implemented with phase-only spatial light modulators," Appl. Opt. 46, 7392-7400 (2007)    less

Abstract : Two iterative methods for the calculation of double-phase holograms (DPHs) are described. The calcu    more

Abstract : 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 <=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.- Slides    less