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In this letter we report on the effects of pixel crosstalk on theexperimental realization of a reported encoding method (Opt. Lett. 39, 1740(2014)) with PA-LCoS SLMs. We found that, under Nyquist limit condition, about70% of a single pixel cell can generate unexpected phase modulation. In orderto approach uniform phase modulation, and consequently improve the quality ofmeasured amplitude and phase images, a generalized sampling scheme is proposed.To corroborate our proposal, proper experiments were carried out. On thispoint, a particular implementation of the well-established phase shiftingtechnique allows us to measure the retrieved complex field by using just asingle camera.

Encoding complex fields by using a phase-only optical element: mitigation of pixel crosstalk effects