Dr. Alberto Paniate Profile

Dr. Alberto Paniate

at Politecnico di Torino

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Proceedings Article | 4 October 2024 Presentation + Paper

New protocols of quantum imaging at INRIM

Carmine Napoli, Alberto Paniate, Ivano Ruo Berchera, Marco Genovese

Proceedings Volume 13148, 1314802 (2024) https://doi.org/10.1117/12.3026673

KEYWORDS: Biological imaging, Quantum ghost imaging, Quantum 3D imaging, Quantum imaging, Photons, Sensors, Quantum xray imaging, Quantum protocols, Quantum light, Quantum entanglement

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The peculiar properties of quantum optical states represent a new resource for innovative imaging schemes, as sub shot noise imaging or quantum illumination. Here we present in detail two works realized in INRIM. The first involves exploiting entanglement to enhance the imaging of a pure phase object in a non-interferometric setting. This wide-field method, based on the "transport of intensity equation", provides the absolute value of the phase without prior knowledge of the object. It does not require spatial and temporal coherence of the incident light. Besides improving image quality at a fixed number of photons, we demonstrate a clear reduction of the uncertainty in the quantitative phase estimation. This research also paves the way for applications at different wavelengths, e.g., x-ray imaging, where reducing the photon dose is of utmost importance. Then, we demonstrate a novel imaging technique, named Light Field Ghost Imaging, which exploits light correlations and light field imaging principles to enable overcome the limitations of ghost imaging in a wide range of applications. Notably, our technique removes the requirement to have prior knowledge of the object distance allowing us to refocus in post-processing and to perform 3D imaging while retaining all the benefits of GI protocols.

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