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
of the spatial size of a reconstruction order (in the previous methods, this format was
). It is shown that the reconstruction can be realized in this case not only into the 0,
, or
orders, as usual, but also into a half-order
. The diffraction efficiency of phase-only DPHs is also discussed. The results of numerical and optical experiments are presented.
© 2007 Optical Society of America
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