Direct 3D Tomographic Reconstruction and Phase-Retrieval of Far-Field Coherent Diffraction Patterns
Computational Physics
2019-02-06 v3
Abstract
We present an alternative numerical reconstruction algorithm for direct tomographic reconstruction of a sample refractive indices from the measured intensities of its far-field coherent diffraction patterns. We formulate the well-known phase-retrieval problem in ptychography in a tomographic framework which allows for simultaneous reconstruction of the illumination function and the sample refractive indices in three dimensions. Our iterative reconstruction algorithm is based on the Levenberg-Marquardt algorithm. We demonstrate the performance of our proposed method with simulation studies.
Cite
@article{arxiv.1808.02109,
title = {Direct 3D Tomographic Reconstruction and Phase-Retrieval of Far-Field Coherent Diffraction Patterns},
author = {T. Ramos and Bastian E. Grønager and Martin Skovgaard Andersen and J. W. Andreasen},
journal= {arXiv preprint arXiv:1808.02109},
year = {2019}
}