Results 121 to 130 of about 2,592,085 (298)

Advances in entangled-photon sources and single-photon avalanche diodes for quantum technologies in the SWIR

Quantum sensing and quantum communication systems rely on high-performance single- or entangled-photon sources and single-photon detectors enabling experiments based on the quantum nature of single photons.
Müller, Raphael, Rehm, Robert, Passow, Thorsten, Rutz, Frank, Diwo-Emmer, Elke, Bächle, Andreas, Daumer, Volker, Wörl, Andreas, Niemasz, Jasmin, Yang, Quankui, Giudicatti, Silvia, Leidel, Vivienne   +11 more
core   +1 more source

Oligoethylene Glycol Side‐Chain Engineering of Y6‐Derived Nonfullerene Acceptors for Thermally Induced Spontaneous Pseudo‐Planar Heterojunction Organic Photodetectors

Advanced Functional Materials, EarlyView.
OEG‐functionalized Y6‐derived acceptors induce thermally driven vertical phase separation, enabling pseudo‐planar heterojunction organic photodetectors. The resulting PM6:YTEG‐4F and PM6:YTEG‐4Cl organic photodetectors suppress dark current density by approximately 260‐fold and 210‐fold, respectively, while maintaining efficient photoresponse ...
Se Jeong Park, Sang Young Jeong, Yunji Eom, Yelim Kang, Yeonsu Choi, Seunghyun Rhee, Bo Ram Lee, Bong Joo Kang, Nam Joong Jeon, Jae Won Shim, Han Young Woo, Seo‐Jin Ko   +11 more
wiley   +1 more source

Timing properties of superconducting nanowire single-photon detectors

, 2019
In this paper, we review theoretical and experimental research progress on timing properties of superconducting nanowire single-photon detectors, including six possible mechanisms that induce timing jitter and experiments towards ultra-low timing jitter.
Yun Meng, Kai Zou, Zichi, Julien,, Valery Zwiller, Haiyi Liu, Lan, Xiaojian,, Liang Xu, Hao Wu, Nan Hu, Wu, Hao,, Julien Zichi, Chao Gu, Zwiller, Valery,, Meng, Yun,, Xiaoming Chi, Hu, Xiaolong,, Gu, Chao,, Xu, Liang,, Xiaolong Hu, Xiaojian Lan, Zou, Kai,, Yuhao Cheng, Liu, Haiyi,, Hu, Nan,, Chi, Xiaoming,, Cheng, Yuhao,   +25 more
core   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Time-resolved fast-neutron imaging with a pulse-counting image intensifier [PDF]

, 2006
A new imaging method that combines high-efficiency fast-neutron detection with sub-ns time resolution is presented. This is achieved by exploiting the high neutron detection efficiency of a thick scintillator and the fast timing capability and ...
Barnstedt, Juergen, Breskin, Amos, Jagutzki, Ottmar, Ronald Lauck, Michael Kraemer, Ottmar Jagutzki, Dangendorf, Volker, Juergen Barnstedt, David Vartsky, Vartsky, David, Lauck, Ronald, Kraemer, Michael, Kaufmann, Frank, Frank Kaufmann, Volker Dangendorf, Amos Breskin   +15 more
core  

Deciphering the Photopolymerization‐Induced Nanostructures and Interface Formation for Submicrometer Additive Manufacturing

Advanced Functional Materials, EarlyView.
This work reveals the UV‐curing‐induced monomer‐rich domain, oligomer‐rich domain, and entangled oligomer domain. The cured submicron films in stressed state induce interlayer nano‐wrinkle structures during the deposition of the second layer. Stress‐free cured films in relaxed state form non‐diffusive, diffusive and semi‐diffusive interlayer ...
Shouzheng Chen, Yufeng Zhai, Jungui Zhou, Lixing Li, Simon Schraad, Guangjiu Pan, Xuehe Jiang, Sarathlal Koyiloth Vayalil, Rolf A. T. M. van Benthem, Julien R. G. Navarro, Johan F. G. A. Jansen, Mats K. G. Johansson, Peter Müller‐Buschbaum, Stephan V. Roth   +13 more
wiley   +1 more source

2D signal estimation for sparse distributed target photon counting data

Scientific Reports
In this study, we explore the utilization of penalized likelihood estimation for the analysis of sparse photon counting data obtained from distributed target lidar systems.
Matthew Hayman, Robert A. Stillwell, Josh Carnes, Grant J. Kirchhoff, Scott M. Spuler, Jeffrey P. Thayer   +5 more
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

High-Rate Photon Counting and Picosecond Timing with Silicon-SPAD based Compact Detector Modules

, 2005
New detector modules exploit recent progress in the technology of silicon Single-Photon Avalanche Diodes (SPAD) and in the design of the associated electronic circuitry. SPAD detectors with diameter up to 100μm, good photon detection efficiency (48% peak
R. Biasi, ZAPPA, FRANCO, COVA, SERGIO, A. Giudice, GHIONI, MASSIMO ANTONIO   +4 more
core  

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella, Andrea Sessa, Yi‐Chen Tsai, Xuzhao Liu, Abdul Mannan, George Greaves, Yahya Saboon, Ben Spencer, Antonio Di Bartolomeo, Cinzia Casiraghi, Jessica Boland, Alessandro Grillo   +11 more
wiley   +1 more source