Abstract

In this paper, we propose an optimized iterative algorithm for generating phase-only Fourier holograms based on quadratic phase. At the beginning of the iteration, we multiply the quadratic phase by the target image as the initial complex amplitude of the iteration, then during it iterates between the object domain and the spectral domain, we use a dynamic-compensation strategy to constrain the object plane. Numerical simulations show that the method has higher reconstruction quality than the Gerchberg–Saxton method based on the quadratic phase and a higher diffraction efficiency and contrast compared to the double constraint Gerchberg–Saxton method. Finally, the phase hologram is loaded onto the phase-only liquid crystal on silicon, optical experiments also prove the effectiveness of our method.

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