Results 31 to 40 of about 3,262 (177)

Current-Assisted Single Photon Avalanche Diode (CASPAD) Fabricated in 350 nm Conventional CMOS

Applied Sciences, 2020
A current-assisted single-photon avalanche diode (CASPAD) is presented with a large and deep absorption volume combined with a small p-n junction in its middle to perform avalanche trigger detection. The absorption volume has a drift field that serves as
Gobinath Jegannathan, Hans Ingelberts, Maarten Kuijk   +2 more
doaj   +1 more source

Neural Imaging Using Single-Photon Avalanche Diodes [PDF]

Basic and Clinical Neuroscience Journal, 2017
This paper analyses the ability of single-photon avalanche diodes (SPADs) for neural imaging. The current trend in the production of SPADs moves toward the minimum dark count rate (DCR) and maximum photon detection probability (PDP). Moreover, the jitter response which is the main measurement characteristic for the timing uncertainty is progressing.The
Mohammad Azim Karami, Misagh Ansarian
openaire   +3 more sources

High Detection Rate Fast-Gated CMOS Single-Photon Avalanche Diode Module

IEEE Photonics Journal, 2020
We present a novel instrument for fast-gated operation of a 50 μm CMOS SPAD (Complementary Metal-Oxide-Semiconductor Single-Photon Avalanche Diode), driven by an integrated fast-gated active quenching circuit with transition times faster than 300 ...
Marco Renna, Alessandro Ruggeri, Mirko Sanzaro, Federica Villa, Franco Zappa, Alberto Tosi   +5 more
doaj   +1 more source

Multi-Channel Gating Chip in 0.18 µm High-Voltage CMOS for Quantum Applications

Sensors, 2023
A gating circuit for a photonic quantum simulator is introduced. The gating circuit uses a large excess bias voltage of up to 9.9 V and an integrated single-photon avalanche diode (SPAD).
Christoph Ribisch, Michael Hofbauer, Seyed Saman Kohneh Poushi, Alexander Zimmer, Kerstin Schneider-Hornstein, Bernhard Goll, Horst Zimmermann   +6 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

SPAD Smart Pixel for Time-of-Flight and Time-Correlated Single-Photon Counting Measurements

IEEE Photonics Journal, 2012
We present a smart pixel based on a single-photon avalanche diode (SPAD) for advanced time-of-flight (TOF) and time-correlated single photon counting (TCSPC) applications, fabricated in a cost-effective 0.35- m CMOS technology.
F. Villa, B. Markovic, S. Bellisai, D. Bronzi, A. Tosi, F. Zappa, S. Tisa, D. Durini, S. Weyers, U. Paschen, W. Brockherde   +10 more
doaj   +1 more source

An optical chip for self-testing quantum random number generation

APL Photonics, 2020
We present an implementation of a semi-device-independent protocol of the generation of quantum random numbers in a fully integrated silicon chip. The system is based on a prepare-and-measure scheme, where we integrate a partially trusted source of ...
Nicolò Leone, Davide Rusca, Stefano Azzini, Giorgio Fontana, Fabio Acerbi, Alberto Gola, Alessandro Tontini, Nicola Massari, Hugo Zbinden, Lorenzo Pavesi   +9 more
doaj   +1 more source

WS2 Micro‐Dome Single Photon Source in a Tunable Open Cavity

Advanced Optical Materials, EarlyView.
In this work, a single‐photon source based on WS2 micro‐domes is realized and integrated into an open, tunable optical microcavity. Single‐photon emission from the coupled emitter–cavity system is observed. Detailed analysis shows that a pronounced acoustic phonon emission sideband contributes specifically to the non‐resonant emitter–cavity coupling in
Jens‐Christian Drawer, Salvatore Cianci, Vita Solovyeva, Alexander Steinhoff, Christopher Gies, Falk Eilenberger, Kenji Watanabe, Takashi Taniguchi, Ivan Solovev, Giorgio Pettinari, Federico Tuzi, Elena Blundo, Marco Felici, Antonio Polimeni, Martin Esmann, Christian Schneider   +15 more
wiley   +1 more source

Implementable methods for characterizing single photon avalanche diode parameters

Results in Optics
Single photon avalanche diode (SPAD) is used in quantum detectors. Quantum detectors are widely used in quantum communication. The quality of these detectors strongly affects the optimal performance of the system.
Mahdi Rahmanpour, Alireza Erfanian, Ahmad Afifi, Mahdi Khaje, Mohammad Hossein Fahimifar   +4 more
doaj   +1 more source

Single-Photon Counting with Semiconductor Resonant Tunneling Devices

Nanomaterials, 2022
Optical quantum information science and technologies require the capability to generate, control, and detect single or multiple quanta of light. The need to detect individual photons has motivated the development of a variety of novel and refined single ...
Andreas Pfenning, Sebastian Krüger, Fauzia Jabeen, Lukas Worschech, Fabian Hartmann, Sven Höfling   +5 more
doaj   +1 more source