Computational super-resolution phase retrieval from multiple phase-coded diffraction patterns : simulation study and experiments

Computational super-resolution inverse diffraction phase retrieval is considered. The optical setup is lensless with a spatial light modulator (SLM) for aperture phase coding. The paper is focused on experimental tests of the Super-Resolution Sparse Phase Amplitude Retrieval (SRSPAR) algorithm. We start from simulation tests and go to physical experiments. Both simulation tests and experiments demonstrate a good quality imaging for super-resolution with the factor 4, which means that the computational pixels of the reconstructed object are 4 times smaller than the sensor pixels. © 2016 Optical Society of America

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