Results 81 to 90 of about 537,589 (297)

Photon Counting LIDAR Based on True Random Coding

open access: yesSensors, 2020
In this paper, a true random coding photon counting LIDAR is described, in which a Gm-APD (Geiger mode avalanche photodiode) acts as the true random sequence signal generator.
Yang Yu, Bo Liu, Zhen Chen, Kangjian Hua
doaj   +1 more source

One‐Step Curcumin‐Mediated Multiphoton Lithography for Bioactive 3D Scaffolds

open access: yesAdvanced Functional Materials, EarlyView.
Curcumin‐mediated multiphoton lithography enables one‐step fabrication of highly architected complex gelatin methacryloyl scaffolds by exploiting curcumin as a multifunctional bioactive photoinitiator. The resulting 3D structures support mesenchymal stem cell adhesion, proliferation, and migration, while exhibiting dual antibacterial activity through ...
Myrto Charitaki   +7 more
wiley   +1 more source

A SPAD-Based Configurable Photon Counting System

open access: yesIEEE Photonics Journal, 2019
In this work, a single photon avalanche diode (SPAD) based configurable photon counting system is developed. The photon counting system is able to operate in three working modes to enhance the system's different performance characteristics for ...
Shijie Deng   +8 more
doaj   +1 more source

Fullerene‐Mediated Iodine Immobilization at Buried Interfaces in Sn–Pb Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
Indene‐C60 bisadduct (ICBA) accumulates at the buried interface of inverted tin‐lead perovskite solar cells, limiting undesired electron extraction while maintaining efficient hole transport. ICBA simultaneously scavenges molecular iodine, mitigating Sn2+ oxidation and interfacial recombination. This coupled electronic‐chemical regulation delivers 22.7%
Chi‐Jing Huang   +15 more
wiley   +1 more source

Planar Silicon SPADs with 200 μm diameter and 35 ps photon timing

open access: yes, 2006
Time-correlated single photon counting (TCSPC) is exploited in emerging scientific applications in life sciences, such as single molecule spectroscopy, DNA sequencing, fluorescent lifetime imaging.
P. Maccagnani   +9 more
core   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

A Miniaturized Single-photon counting Laser Altimeter for Space Applications

open access: yes
We report on the development of a single-photon counting laser altimeter that enables planetary laser altimetry with less demanding size, weight and power (SWaP) budgets compared to conventional laser altimeters.
Lingenauber, Kay   +9 more
core   +1 more source

High-performance silicon single-photon avalanche diode array

open access: yes, 2009
Over the past few years there has been a growing interest in monolithic arrays of single photon avalanche diodes (SPAD) for spatially resolved detection of faint ultrafast optical signals.
GULINATTI, ANGELO   +4 more
core   +1 more source

Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots

open access: yesAdvanced Functional Materials, EarlyView.
Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz   +11 more
wiley   +1 more source

Towards practical quantum metrology with photon counting [PDF]

open access: yes, 2016
Quantum metrology aims to realise new sensors operating with the ultimate in precision measurement. However, optical loss, the complexity of proposed metrology schemes, and interferometric instability each prevent the realisation of practical quantum ...
Saunders, Dylan J   +11 more
core   +1 more source

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