Results 141 to 150 of about 1,437,467 (197)

Enhanced Quantum Imaging SPAD arrays

2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2021
Quantum techniques are commonly used to enhance measurement performance in many fields, such as imaging, microscopy, communications, computing and metrology. In quantum imaging and microscopy, entangled photons are exploited to improve image resolution and sensitivity, overcoming the diffraction limit and providing Sub-Shot Noise (SSN) measurements [1]
Villa F., Severini F., Madonini F., Zappa F.   +3 more
openaire   +1 more source

Quantum ghost imaging based on a "looking back" 2D SPAD array.

Applied Optics, 2023
Quantum ghost imaging (QGI) is an intriguing imaging protocol that exploits photon-pair correlations stemming from spontaneous parametric down-conversion (SPDC).
V. Gili, Dupish Dupish, Andres Vega, M. Gandola, Enrico Manuzzato, M. Perenzoni, L. Gasparini, T. Pertsch, F. Setzpfandt   +8 more
semanticscholar   +1 more source

A low-light SPAD vision array

2014 IEEE International Symposium on Circuits and Systems (ISCAS), 2014
We present a low-light vision system platform that enables the testing and implementation of optic flow algorithms and kernel operations for micro-air vehicle navigation and obstacle avoidance capabilities. The system includes a 7×7 array of actively-quenched large-area single photon avalanche diodes, each having a compact 9-bit analog counter, and ...
Andrew Berkovich, Pamela Abshire
openaire   +1 more source

Crosstalk mapping in CMOS SPAD arrays

2016 46th European Solid-State Device Research Conference (ESSDERC), 2016
Optical crosstalk is one of the main factors limiting the performance of Single-Photon Avalanche Diode (SPAD) arrays and Silicon Photomultipliers (SiPMs). In this paper, a set of crosstalk measurements on a CMOS SPAD pixel array with 50µm × 75µm pitch and 51.6% Fill Factor, designed for direct particle detection, is reported.
Andrea Ficorella, Lucio Pancheri, Gian-Franco Dalla Betta, Paolo Brogi, Gianmaria Collazuol, Pier Simone Marrocchesi, Fabio Morsani, Lodovico Ratti, Aurore Savoy-Navarro   +8 more
openaire   +2 more sources

A 100x100 CMOS SPAD Array with In-Pixel Correlation Techniques for Fast Quantum Ghost Imaging Applications

European Solid-State Circuits Conference, 2023
In this paper, a 100x100 CMOS Single Photon Avalanche Diode (SPAD) array designed for quantum imaging applications requiring synchronization with an external unpredictable and aperiodic trigger is presented.
Massimo Gandola, Enrico Manuzzato, M. Perenzoni, Filippo Dal Farra, V. Gili, Dupish Dupish, Andres Vega, T. Pertsch, F. Setzpfandt, L. Gasparini   +9 more
semanticscholar   +1 more source

Compact readout circuits for SPAD arrays

Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2010
Single Photon Avalanche Diodes (SPADs) create a very short duration voltage pulse whenever a photon is detected. The resulting high sensitivity and temporal resolution makes them useful in a range of applications. In this paper two different analogue circuits are reported that are suitable for imaging applications that can record the number of detected
Danial Chitnis, Steve Collins
openaire   +1 more source

SPADA: An Array of SPAD Detectors for Astrophysical Applications

Experimental Astronomy, 2006
Astrophysical studies require accurate, sensitive and fast detectors to detect faint sources with high variability. Recently an array of Single Photon Avalanche Diodes (SPAD), SPADA, has been developed. This array is suitable for competitive adaptive optics operations and fast transient image acquisition at a fraction of the current cost of imaging ...
Bonanno G, Belluso M, Zappa F, Tisa S, Cova S, Maccagnani P, Bonaccini Calia D, SALETTI, ROBERTO, RONCELLA, ROBERTO, Billotta S.   +9 more
openaire   +4 more sources

CMOS Transceiver with Time-Gated 4×8 SPAD Array and Width-Controlled Laser Diode Pulser for Time-Domain Diffuse Optics Measurements

Italian National Conference on Sensors, 2023
A CMOS transceiver for time-domain diffuse optics measurements has been fabricated with 150 nm CMOS technology on a single die. The pulse width of a laser diode (LD) can be adjusted from 835 ps to 3 ns, with a resolution of $\sim 100$ ps, for different ...
M. Pakaslahti, I. Nissinen, J. Nissinen
semanticscholar   +1 more source

Compound semiconductor SPAD arrays

SPIE Proceedings, 2013
Single photon avalanche diodes (SPADs) are revolutionizing ultra-sensitive photodetection applications, providing single photon sensitivity, high quantum efficiency and low dark noise at or near room temperature. When aggregated into arrays, these devices have demonstrated the ability to operate as photon number resolving detectors with wide dynamic ...
Eric S. Harmon, Mikhail Naydenkov, James T. Hyland   +2 more
openaire   +1 more source

Real-time LiDAR module with 64x128-pixel CMOS SPAD array and 940-nm PCSEL

Sensors Applications Symposium, 2022
High-performance light detection and ranging (LiDAR) modules are highly demanded for advanced driving assistance system and autonomous driving. The high power level of emitter required for long-distance ranging is one of the key issues to be addressed to
An-Tai Hsiao, Chun-Hsien Liu, Po-Hsuan Chen, Yaoqing Liu, Wei-Chih Wang, Tzu-Hsien Sang, Chia-Ming Tsai, Gray Lin, Jiun-In Guo, Sheng-Di Lin   +9 more
semanticscholar   +1 more source