Quantum Ghost Imaging (QGI) uses quantum light properties to investigate biological samples. It involves a single quantum source generating two beams: a visible signal beam detected by an image sensor and an idler beam with sample information detected by a single-channel bucket detector. Temporal correlations between these two detectors are exploited to create a ghost image of the sample at the target wavelength without requiring an expensive custom detector. This study presents a Monte Carlo simulation model of a Single Photon Avalanche Diode (SPAD) based array for QGI microscopy highlighting the key features and major limitations. A 100X100-pixel array prototype is presented and characterized showing a less than 3% false-event rate and an average correlation window ranging between 3 and 7.8 ns with 0.4 and 0.6 ns standard deviation respectively. A smart zero-suppression readout allows fast QGI up to 80 kframe/s.

Architectural Modeling and Experimental Characterization of SPAD-based Imager developed for Fast-Quantum Ghost Imaging Applications

Enrico Manuzzato;Massimo Gandola;Matteo Perenzoni;Leonardo Gasparini;Roberto Passerone
2025-01-01

Abstract

Quantum Ghost Imaging (QGI) uses quantum light properties to investigate biological samples. It involves a single quantum source generating two beams: a visible signal beam detected by an image sensor and an idler beam with sample information detected by a single-channel bucket detector. Temporal correlations between these two detectors are exploited to create a ghost image of the sample at the target wavelength without requiring an expensive custom detector. This study presents a Monte Carlo simulation model of a Single Photon Avalanche Diode (SPAD) based array for QGI microscopy highlighting the key features and major limitations. A 100X100-pixel array prototype is presented and characterized showing a less than 3% false-event rate and an average correlation window ranging between 3 and 7.8 ns with 0.4 and 0.6 ns standard deviation respectively. A smart zero-suppression readout allows fast QGI up to 80 kframe/s.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11582/352607
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