Gauging diffraction patterns: field of view and bandwidth estimation in lensless holography
Signal Processing
2021-03-23 v1 Instrumentation and Methods for Astrophysics
Abstract
The purpose of this work is to provide theoretically grounded assessment on both the field-of-view and the bandwidth of a lensless holographic setup. Indeed, while previous works have presented results with super-resolution and field-of-view extrapolation, there is no well established rules to determine them. We show that the theoretical field of view can be hugely large with a spatial-frequency bandwidth only limited by the wavelength leading to an unthinkable number of degrees of freedom. To keep a realistic field of view and bandwidth, we propose several practical bounds based on few setup properties: namely the noise level and the spatio-temporal coherence of the source.
Cite
@article{arxiv.2103.11649,
title = {Gauging diffraction patterns: field of view and bandwidth estimation in lensless holography},
author = {Ferréol Soulez},
journal= {arXiv preprint arXiv:2103.11649},
year = {2021}
}