Gauging diffraction patterns: field of view and bandwidth estimation in lensless holography
Résumé
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.
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Measuring_diffraction_patterns__field_of_view_and_bandwidth_assesment_in_lensless_holography(1).pdf (2.23 Mo)
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2019-Sampling.pdf (2.28 Mo)
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Review.pdf (111.66 Ko)
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