Results 101 to 110 of about 2,592,085 (298)

Reduction of CMOS Image Sensor Read Noise to Enable Photon Counting

open access: yesSensors, 2016
Recent activity in photon counting CMOS image sensors (CIS) has been directed to reduction of read noise. Many approaches and methods have been reported.
Michael Guidash   +3 more
doaj   +1 more source

Photon-counting x-ray detectors for CT

open access: yesPhysics in Medicine and Biology, 2020
The introduction of photon-counting detectors is expected to be the next major breakthrough in clinical x-ray computed tomography (CT). During the last decade, there has been considerable research activity in the field of photon-counting CT, in terms of ...
M. Danielsson   +2 more
semanticscholar   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

open access: yesAdvanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang   +14 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Characterize the Speed of a Photon-Number-Resolving Superconducting Nanowire Detector

open access: yesIEEE Photonics Journal, 2020
Superconducting series nanowire single-photon detectors (SNDs) have been used for resolving photon numbers. But it can also exhibit a higher counting rate than a single superconducting nanowire single-photon detector (SNSPD), because the serial ...
Xu Tao   +10 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

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

Tuning the Optoelectronic Properties of Wide Bandgap Perovskites: Data‐Driven Insights from Combinatorial Synthesis and High‐Throughput Experimentation

open access: yesAdvanced Functional Materials, EarlyView.
Combinatorial vapor deposition enables independent tuning of Cs/Pb and Br/Cl in wide‐bandgap perovskites. Automated multimodal mapping of 500+ compositions reveals a high‐energy optical transition that correlates with enhanced photoluminescence, defining a practical Cs/Pb window.
Alexander Wieczorek   +6 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

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

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