Phase retrieval and design with automatic differentiation: tutorial

  title={Phase retrieval and design with automatic differentiation: tutorial},
  author={Alison P. Wong and Benjamin J. S. Pope and Louis Desdoigts and Peter G. Tuthill and Barnaby R. M. Norris and Christopher H. Betters},
  journal={Journal of the Optical Society of America B},
The principal limitation in many areas of astronomy, especially for directly imaging exoplanets, arises from instability in the point spread function (PSF) delivered by the telescope and instrument. To understand the transfer function, it is often necessary to infer a set of optical aberrations given only the intensity distribution on the sensor — the problem of phase retrieval. This can be important for post-processing of existing data, or for the design of optical phase masks to engineer PSFs… Expand

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