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.
- Pub Date:
- April 2021
- Electrical Engineering and Systems Science - Signal Processing;
- Astrophysics - Instrumentation and Methods for Astrophysics
- Applied optics, Optical Society of America, 2021, 60 (10), pp.B38