Results 61 to 70 of about 4,853 (175)

Two-photon imaging with silicon photomultipliers

Optics Express, 2019
We compared performance of recently developed silicon photomultipliers (SiPMs) to GaAsP photomultiplier tubes (PMTs) for two-photon imaging of neural activity. Despite higher dark counts, SiPMs match or exceed the signal-to-noise ratio of PMTs at photon rates encountered in typical calcium imaging experiments due to their low pulse height variability ...
Mehrab N, Modi, Kayvon, Daie, Glenn C, Turner, Kaspar, Podgorski   +3 more
openaire   +2 more sources

Dual‐Component Spidroin‐Based Hydrogels: A Mechanically Tunable Platform for 2D and 3D Cell Culture

Small, EarlyView.
A dual‐component recombinant spider silk hydrogel platform was developed by combining NT2RepCT with a bioactive vitronectin‐functionalized spidroin domain. The hydrogels self‐assemble under physiological conditions, exhibit tunable mechanical properties, and support 2D and 3D cell culture, providing a versatile platform for mechanobiological studies ...
Sanna Korpela, Urmimala Chatterjee, Gabriele Greco, Benjamin Schmuck, Rakesh Kumar, Olga Shilkova, Cecilia Götherström, Anna Rising, Teemu O. Ihalainen   +8 more
wiley   +1 more source

Unraveling the Proton‐Induced Degradation Mechanism in Quantum‐Dots Light‐Emitting Diode for Space Applications

Small, EarlyView.
Low‐energy proton irradiation induces ligand detachment at the QD/ZnO interface in quantum‐dot light‐emitting diodes (QLEDs). The exposed ZnS surface interacts with ZnO defects, generating a high density of interfacial trap states that promote electron trapping, suppress charge injection, and accelerate non‐radiative recombination, ultimately leading ...
Chanwoo Lim, Tai Nguyen, Chanmin Kim, Darshpreet Kaur Saini, Todd A. Byers, Youngjo Choi, Bibhudutta Rout, Dong Hyun Kim, Jun Hong Noh, Soong Ju Oh, Taeyeon Kim, Jae‐Hyeon Ahn, Do Young Kim, Hyeonggeun Yu   +13 more
wiley   +1 more source

Light Readout of Small Scintillators Using SiPM Photosensors

Sensors
During the last two decades, relevant progress has been achieved in silicon photomultiplier (SiPM) technology, such that in an increasing number of radiation detection applications they are proposed as a viable alternative to traditional photomultiplier ...
Chiara Rita Failla, Simone Amaducci, Gaetano Elio Poma, Paolo Finocchiaro   +3 more
doaj   +1 more source

Polymorphism and NIR Photoluminescence of Anhydrous Ytterbium(III) Acetate: Reversible Transformations of Three Polar Structures in the Temperature Range 100–593 K

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Crystallographic variety, reversible transitions, and NIR emission of anhydrous Yb(OAc)3: identification of a new γ‐phase results in altogether three modifications all crystallizing in polar space groups related by reversible solid–solid phase transitions.
Maksim A. Zhernakov, Tobias Stürzer, Yuriy G. Denisenko, Jakob Möbs, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Application of Silicon Photomultipliers in Neutron Detectors [PDF]

, 2021
Advancement in the development of semiconductor photodetectors have led to substitution of Photomultiplier Tube (PMT) technology by solid state devices in many applications. Silicon Photomultipliers (SiPM) are solid-state photodetectors with a gain similar to PMT and that have several advantages over the PMTs like low operating voltages and ...
openaire   +2 more sources

New perspectives for studying nuclear collective states and exotic shapes with the EAGLE gamma spectrometer and the upgraded Recoil Filter Detector at HIL UW [PDF]

EPJ Web of Conferences
The integration of the upgraded Recoil Filter Detector (RFD) with the EAGLE gamma-ray spectrometer at the Heavy Ion Laboratory, University of Warsaw, provides new opportunities for high-resolution in-beam spectroscopy.
Matejska-Minda Magdalena, Hiver Corentin, Bednarczyk Piotr, Duda Dominik, Ciemała Michał, Cieplicka-Oryńczak Natalia, Dedes Irene, Fornal Bogdan, Grębosz Jerzy, Iskra Łukasz W., Kmiecik Maria, Kulessa Paweł, Maj Adam, Sowicki Bogdan, Ziębliński Mirosław, Palacz Marcin, Hadyńska-Klęk Katarzyna, Jaworski Grzegorz, Komorowska Michalina, Kowalczyk Michał, Napiorkowski Paweł J., Panasenko Serghii, Piętka Iwona Z., Samorajczyk-Pyśk Justyna, Sekrecka Paulina, Špaček Andrej, Tucholski Andrzej, Wrzosek-Lipska Katarzyna, Malinowski Adam, Kuti Istvan, Molnár József   +30 more
doaj   +1 more source

Advanced Sensing Materials and Their Applications for Power Sensors

High Voltage, EarlyView.
ABSTRACT The construction of new‐generation power systems imposes stringent requirements on the safety and reliability of critical equipment, making accurate state perception essential for grid security and digital transformation. Sensing materials fundamentally determine sensor performance in terms of sensitivity, bandwidth, environmental adaptability
Weigen Chen, Yuxuan Song, Jun Hu, Xia Chen, Han Peng, Cheng He, Xing Fan, Wentao Zhang, Shijie Cheng   +8 more
wiley   +1 more source

Underwater Wireless Optical Communication Based on DPSK Modulation and Silicon Photomultiplier

IEEE Access, 2020
In this paper, a promising phase-modulated underwater wireless optical communication (UWOC) system with silicon photomultiplier (SiPM) based receiver is proposed for the first time and its feasibility has been experimentally demonstrated in a laboratory ...
Xinke Tang, Long Zhang, Caiming Sun, Zhen Chen, Hongjie Wang, Rui Jiang, Zhongyi Li, Wu Shi, Aidong Zhang   +8 more
doaj   +1 more source

Systematic investigation of the diffraction efficiency of sub‐15 nm resolution soft X‐ray zone plates via simulation and measurement

Journal of Synchrotron Radiation, EarlyView.
This study presents systematic measurements and rigorous coupled‐wave analysis of relative and absolute diffraction efficiencies for sub‐15 nm soft X‐ray Fresnel zone plates. By decoupling intrinsic optical performance from practical beamline transmission losses, this work establishes a highly reliable metrology framework to support the development of ...
Qingyuan Mao, Yuchen Jiao, Liang Liu, Jingyuan Zhu, Li Jiang, Xiangzhi Zhang, Zhanshan Wang   +6 more
wiley   +1 more source