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Some aspects of deterministic phase retrieval

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We outline some aspects of deterministic phase retrieval, namely the reconstruction of wavefield phase from intensity measurements. Attention is focused on methods employing the so-called transport-of-intensity equation, this being the continuity equation associated with the paraxial (parabolic) equation. Applications in electron microscopy, x-ray imaging, neutron optics and superfluidity will be discussed. We will also briefly outline the importance of topological defects in the phase, namely screw dislocations and domain walls, on the question of deterministic phase retrieval.

This talk is part of the Electron Microscopy Group Seminars series.

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