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Single-photon cameras (SPCs) are emerging as sensors of choice for various challenging imaging applications. One class of SPCs based on the single-photon avalanche diode (SPAD) detects individual photons using an avalanche process; the raw…

Image and Video Processing · Electrical Eng. & Systems 2024-09-30 Lucas J. Koerner , Shantanu Gupta , Atul Ingle , Mohit Gupta

Spatial correlations between two photons are the key resource in realising many quantum imaging schemes. Measurement of the bi-photon correlation map is typically performed using single-point scanning detectors or single-photon cameras…

Benefiting from its single-photon sensitivity, single-photon avalanche diode (SPAD) array has been widely applied in various fields such as fluorescence lifetime imaging and quantum computing. However, large-scale high-fidelity…

Single-photon avalanche diodes (SPADs) are growing in popularity for depth sensing tasks. However, SPADs still struggle in the presence of high ambient light due to the effects of pile-up. Conventional techniques leverage fixed or…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Ryan Po , Adithya Pediredla , Ioannis Gkioulekas

Scene reconstruction in the presence of high-speed motion and low illumination is important in many applications such as augmented and virtual reality, drone navigation, and autonomous robotics. Traditional motion estimation techniques fail…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Sacha Jungerman , Atul Ingle , Mohit Gupta

Single photon detection is important for a wide range of low-light applications, including quantum information processing, spectroscopy, and light detection and ranging (LiDAR). A key challenge in these applications has been to integrate…

SPAD cameras offer single photon detection sensitivity, high frame rates and zero readout noise. They are a core technology for widefield FLIM, but have further potential in ultra-fast imaging applications. However, in practice sensitivity…

Instrumentation and Detectors · Physics 2016-02-15 Istvan Gyongy , Amy Davies , Neale A. W. Dutton , Rory Duncan , Colin Rickman , Robert K. Henderson , Paul Dalgarno

Silicon single-photon avalanche diode (SPAD) is a core device for single-photon detection in the visible and the near-infrared range, and widely used in many applications. However, due to limits of the structure design and device…

Instrumentation and Detectors · Physics 2020-03-17 Jian Ma , Ming Zhou , Zongfu Yu , Xiao Jiang , Yijie Huo , Kai Zang , Jun Zhang , James S. Harris , Ge Jin , Qiang Zhang , Jian-Wei Pan

Noninvasive optical imaging through dynamic scattering media has numerous important biomedical applications but still remains a challenging task. While standard diffuse imaging methods measure optical absorption or fluorescent emission, it…

Single photon avalanche diode arrays can provide both the spatial and temporal information of each detected photon. We present here the characterization of entangled light with a sensor specifically designed for quantum imaging…

With the evolving technology in CMOS integration, new classes of 2D-imaging detectors have recently become available. In particular, single photon avalanche diode (SPAD) arrays allow detection of single photons at high acquisition rates…

CMOS-compatible single-photon avalanche diodes (SPADs) have emerged in many systems as the solution of choice for cameras with photon-number resolution and photon counting capabilities. Being natively digital optical interfaces, SPADs are…

Image and Video Processing · Electrical Eng. & Systems 2025-11-25 Tommaso Milanese , Baris Can Efe , Claudio Bruschini , Nobukazu Teranishi , Edoardo Charbon

High-resolution three-dimensional imaging under photon-starved conditions remains challenging. Here, we demonstrate a high-resolution long-range 3D single-photon imaging system based on a digital micromirror device (DMD) and a compact 64…

We demonstrate photon-counting single-pixel imaging in the ultraviolet region. Toward this target, we develop a high-performance compact single-photon detector based on a 4H-SiC single-photon avalanche diode (SPAD), where a tailored readout…

Integrated quantum photonics, which allows for the development and implementation of chip-scale devices, is recognized as a key enabling technology on the road towards scalable quantum networking schemes. However, many state-of-the-art…

Instrumentation and Detectors · Physics 2019-10-18 Salih Yanikgonul , Victor Leong , Jun Rong Ong , Ching Eng Png , Leonid Krivitsky

Photonic quantum technologies promise a revolution of the world of information processing, from simulation and computing to communication and sensing, thanks to the many advantages of exploiting single photons as quantum information…

Instrumentation and Detectors · Physics 2021-10-11 Francesco Ceccarelli , Giulia Acconcia , Angelo Gulinatti , Massimo Ghioni , Ivan Rech , Roberto Osellame

The ability to know what is hidden around a corner or behind a wall provides a crucial advantage when physically going around the obstacle is impossible or dangerous. Previous solutions to this challenge were constrained e.g. by their…

The ability to detect single photons has led to the advancement of numerous research fields. Although various types of single-photon detector have been developed, because of two main factors - that is, (1) the need for operating at…

Instrumentation and Detectors · Physics 2024-09-18 Neil Na , Yen-Cheng Lu , Yu-Hsuan Liu , Po-Wei Chen , Ying-Chen Lai , You-Ru Lin , Chung-Chih Lin , Tim Shia , Chih-Hao Cheng , Shu-Lu Chen

Temporal photon correlation measurement, instrumental to probing the quantum properties of light, typically requires multiple single photon detectors. Progress in single photon avalanche diode (SPAD) array technology highlights their…

Improving robotic navigation is critical for extending exploration range and enhancing operational efficiency. Vision-based navigation relying on traditional CCD or CMOS cameras faces major challenges when complex illumination conditions…

Robotics · Computer Science 2025-10-14 David Rodríguez-Martínez , C. J. Pérez del Pulgar