Scatter Ptychography

Code

• github.com/djbradyatopticalsciencesarizona/scatterptychography
  OfficialIn paperpytorch★ 3

Abstract

Coherent illumination reflected by a remote target may be secondarily scattered by intermediate objects or materials. Here we show that phase retrieval on remotely observed images of such scattered fields enables imaging of the illuminated object at resolution proportional to R_s/A_s, where R_s is the range between the scatterer and the target and A_s is the diameter of the observed scatter. This resolution may exceed the resolution of directly viewing the target by the factor R_cA_s/R_sA_c, where R_c is the range between the observer and the target and A_c is the observing aperture. Here we use this technique to demonstrate 32 resolution improvement relative to direct imaging.

Tasks

Reproductions