Optical Sensors and Sensing Congress

19 July 2021 – 23 July 2021
Optica Virtual Event - Pacific Daylight/Summer Time (UTC - 07:00)

Single-photon Detectors and Quantum Imaging (SW5F)

Presider: Jennifer Choy, University of Wisconsin-Madison
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13:00 - 13:15
(UTC - 07:00)

Multi-photon coincidence-detection SPAD array for super-resolution microscopy (SW5F.1)
Presenter: Francesca Madonini, Politecnico di Milano

We designed a scalable and readout-efficient Single Photon Avalanche Diode (SPAD) array optimized to detect n-fold photon coincidences across a wide active area, aiming at super-resolution imaging through single-photon emitters and detection.

Authors:Francesca Madonini, Politecnico di Milano / Fabio Severini, Politecnico di Milano / Enrico Conca, Politecnico di Milano / Federica Villa, Politecnico di Milano


13:15 - 13:30
(UTC - 07:00)

Towards low timing jitter photon number-resolved Digital Silicon Photomultiplier (SW5F.2)
Presenter: Davide Berretta, Politecnico di Milano

We discuss the design of an innovative general-purpose Digital Silicon Photomultiplier (d-SiPM) with 32 × 32 SPADs, aiming at improving dynamic range and readout timing jitter, by means of a mixed-signal architecture.

Authors:Davide Berretta, Politecnico di Milano / Alfonso Incoronato, Politecnico di Milano / Vincenzo Sesta, Politecnico di Milano / Federica Villa, Politecnico di Milano


13:30 - 13:45
(UTC - 07:00)

Linear SPAD array single- and multiple-photon coincidence-based Quantum Random Number Generator (SW5F.3)
Presenter: Alfonso Incoronato, politecnico di milano

we presents a 32 × 1 linear Single Photon Avalanche Diode array for quantum communication applications. The array provides the position of the single photon detected, and can identify multiple photon coincidences.

Authors:Alfonso Incoronato, politecnico di milano / Fabio Severini, politecnico di milano / Enrico Conca, politecnico di milano / Federica Villa, politecnico di milano / Franco Zappa, politecnico di milano


13:45 - 14:00
(UTC - 07:00)

32×32 SPAD camera for 2D photon-counting and 3D time-of-flight ranging (SW5F.4)
Presenter: IRIS CUSINI, Politecnico di Milano

We present the development and characterization of a camera system based on an improved version of a previously developed 32×32 SPADs and TDCs array, with extended duty cycle (80%) and enhanced single-shot precision (175ps rms).

Authors:IRIS CUSINI, Politecnico di Milano / Klaus Pasquinelli, Politecnico di Milano / Enrico Conca, Politecnico di Milano / Federica Villa, Politecnico di Milano


14:00 - 14:15
(UTC - 07:00)

Exchange-Free Ghost Imaging (SW5F.5)
Presenter: Jonte Hance, University of Bristol

We have developed a protocol for ghost imaging that is always exchange-free - while imaging an object, no light interacts with it. This provides both better visibility/SNR and less absorbed intensity than ghost imaging.

Authors:Jonte Hance, University of Bristol / John Rarity, University of Bristol


14:15 - 14:30
(UTC - 07:00)

Quantum Noise Imaging (SW5F.6)
Presenter: Savannah Cuozzo, William & Mary

We image an object solely illuminated with squeezed vacuum by analyzing the quantum noise statistics and show how the quality of the image is linked to the squeezing mode size and detection area.

Authors:Savannah Cuozzo, William & Mary / Pratik Barge, Louisiana State University / Nikunj Prajapati, William & Mary / Narayan Bhusal, Louisiana State University / Hwang Lee, Louisiana State University / Lior Cohen, Louisiana State University / Irina Novikova, William & Mary / Eugeniy Mikhailov, William & Mary


14:30 - 14:45
(UTC - 07:00)

Mid-infrared balanced detector for characterization of quantum light (SW5F.7)
Presenter: Tecla Gabbrielli, LENS

We present a novel shot-noise-limited balanced-homodyne detector operating in the mid-infrared useful for revealing possible non-classicality in quantum cascade lasers emission. We will give a view to quantum-technologies applications such as free-space quantum communication.

Authors:Tecla Gabbrielli, LENS / Francesco Cappelli, CNR-INO / Natalia Bruno, CNR-INO / Nicola Corrias, CNR-INO / Simone Borri, CNR-INO / Paolo De Natale, CNR-INO / Alessandro Zavatta, CNR-INO