27 papers · ranked by Valyu relevance
Chandra M. Natarajan, Michael G. Tanner, Robert H. Hadfield
Single-photon detectors based on superconducting nanowires (SSPDs or SNSPDs) have rapidly emerged as a highly promising photon counting technology for infrared wavelengths. These devices offer high efficiency, low dark counts and excellent timing resolution. In this Review, we consider the basic SNSPD operating…
Y. H. Kim, Sang‐Jun Lee, B. S. Yang
Superconducting detectors have become an important tool in experimental astroparticle physics, which seeks to provide a fundamental understanding of the Universe. In particular, such detectors have demonstrated excellent potential in two challenging research areas involving rare event search experiments, namely, the…
Lixing You
The superconducting nanowire single-photon detector (SNSPD) is a quantum-limit superconducting optical detector based on the Cooper-pair breaking effect by a single photon, which exhibits a higher detection efficiency, lower dark count rate, higher counting rate, and lower timing jitter when compared with those…
Thomas Cecil, C. L. Chang, Shannon M. Duff, Dale Li + 3 more
'Mark Platt' 'Kevin Ryu'] Superconducting sensors are a key enabling technology for many HEP experiments with advances in sensor capabilities leading directly to expanded science reach. The unique materials and processes required for the fabrication of these sensors makes commercial sourcing impractical in comparison…
Tomas Polakovic, Whitney Armstrong, Goran Karapetrov, Zein-Eddine Meziani + 1 more
Superconducting nanowire single photon detectors are becoming a dominant technology in quantum optics and quantum communication, primarily because of their low timing jitter and capability to detect individual low-energy photons with high quantum efficiencies. However, other desirable characteristics, such as high…
Mario de Lucia, Paolo Dal Bo, E. Di Giorgi, Tommaso Lari + 2 more
Transition Edge Sensors (TESs) are amongst the most sensitive cryogenic detectors and can be easily optimized for the detection of massive particles or photons ranging from X-rays all the way down to millimetre radiation. Furthermore, TESs exhibit unmatched energy resolution while being easily frequency domain…
Mette Bybjerg Brock, Emil Visby Østergaard, Matteo Busi, Anders C. Wulff + 2 more
'Anders C. Wulff' 'Asger Bech Abrahamsen' 'Luise Theil Kuhn'] Needs for neutron detection and monitoring in high neutron flux environments are increasing in several different fields. A completely solid-state, current mode bolometric detector is constructed as a solid substrate transition edge sensor based on a high-T…
V. A. Seleznëv, A. Divochiy, Yu. B. Vakhtomin, Pavel Morozov + 5 more
'Philipp Zolotov' 'Д.Д. Васильев' 'Konstantin Moiseev' 'E I Malevannaya' 'K. Smirnov'] Abstract. We have developed the deposition technology of WSi thin films 4 to 9 nm thick with high temperature values of superconducting transition (Tc~4 K). Based on deposed films there were produced nanostructures with indicative…
Roger Cattaneo, Artemii E. Efimov, Kirill I. Shiianov, Oliver Kieler + 1 more
'Vladimir M. Krasnov'] Cascade multiplication is widely used to enhance photon detector sensitivity. While vacuum tube and semiconductor photomultipliers achieve high gains in the optical range, their performance at lower frequencies is limited by large work functions. Superconducting detectors overcome this…
Ilya Charaev, Emma K. Batson, Sergey Cherednichenko, Kate Reidy + 9 more
'Vladimir Drakinskiy' 'Yang Yu' 'Samuel Lara-Avila' 'Joachim D. Thomsen' 'Marco Colangelo' 'Francesca Incalza' 'Konstantin Ilin' 'Andreas Schilling' 'Karl K. Berggren'] Ultra-fast single-photon detectors with high current density and operating temperature can benefit space and ground applications, including quantum…
Andrew Murphy, Alexander Semenov, Alexander Korneev, Yulia Korneeva + 2 more
'Gregory Gol’tsman' 'Alexey Bezryadin'] We perform measurements of the switching current distributions of three w ≈ 120 nm wide, 4 nm thick NbN superconducting strips which are used for single-photon detectors. These strips are much wider than the diameter of the vortex cores, so they are classified as…
Feifei Wang, Fuqiang Ren, Zhuoran Ma, Liangqiong Qu + 9 more
Light scattering by biological tissues sets a limit to the penetration depth of high-resolution optical microscopy imaging of live mammals in vivo. An effective approach to reduce light scattering and increase imaging depth is by extending the excitation and emission wavelengths to the > 1000 nm second near-infrared…
Christoph Pfeiffer, Silvia Ruffieux, Lars Jönsson, Maxim L. Chukharkin + 4 more
Due to their higher operating temperature, high-T_c_ superconducting quantum interference devices (SQUIDs) require less thermal insulation than the low-T_c_ sensors that are utilized in commercial magnetoen-cephalography (MEG) systems. As a result, they can be placed closer to the head, where neuromagnetic fields are…
E. Skidchenko, A. Butorina, M. Ostras, P. Vetoshko + 4 more
Recently, a new kind of sensor applicable in magnetoencephalography (MEG) has been presented: a solid-state yttrium-iron garnet magnetometer (YIGM). The feasibility of YIGM was proved in alpha-rhythm registration experiment. In the current paper, we propose the analysis of lead-field matrices for different possible…
Joonas Iivanainen, Matti Stenroos, Lauri Parkkonen
Optically-pumped magnetometers (OPMs) have recently reached sensitivity levels required for magnetoencephalogra-phy (MEG). OPMs do not need cryogenics and can thus be placed within millimetres from the scalp into an array that adapts to the invidual head size and shape, thereby reducing the distance from cortical…
Katarzyna Gas, Maciej Sawicki
Steadily growing interest in magnetic characterization of organic compounds aiming at therapeutic purposes, or of other irregular-shaped specimens calls for refinements of experimental methodology to satisfy experimental challenges. Encapsulation in capsules remains the method of choice, but its applicability in…
E. S. Battistelli, F. Bellini, C. Bucci, M. Calvo + 15 more
\usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_2$$\end{document} 2 bolometers with kinetic inductance detectors Authors: E. S. Battistelli, F. Bellini, C. Bucci, M.…
Joonas Iivanainen, Rasmus Zetter, Mikael Grön, Karoliina Hakkarainen + 1 more
The spatial resolution of magnetoencephalography (MEG) can be increased from that of conventional SQUID-based systems by employing on-scalp sensor arrays of e.g. optically-pumped magnetometers (OPMs). However, OPMs reach sufficient sensitivity for neuromagnetic measurements only when operated in a very low absolute…
Songlin Wang, Thirupathi Ravula, John A. Stringer, Peter L. Gor’kov + 5 more
NMR spectroscopy is a powerful technique with broad impact across the physical and life sciences, and ultra-high field, GHz-class NMR spectrometers offer exceptional overall performance including superior resolution and sensitivity. While the resolution is fundamentally limited by molecular tumbling for solution NMR…
Colton C. Seegmiller, Sterling G. Baird, Hasan M. Sayeed, Taylor D. Sparks
One of the biggest unsolved problems in condensed matter physics is what mechanism causes high-temperature superconductivity and if there is a material that can exhibit superconductivity at both room temperature and atmospheric pressure. Among the many important properties of a superconductor, the critical temperature…
Colton C. Seegmiller, Sterling G. Baird, Hasan M. Sayeed, Taylor D. Sparks
One of the biggest unsolved problems in condensed matter physics is what mechanism causes high-temperature superconductivity and if there is a material that can exhibit superconductivity at both room temperature and atmospheric pressure. Among the many important properties of a superconductor, the critical temperature…
Colton C. Seegmiller, Sterling G. Baird, Hasan M. Sayeed, Taylor D. Sparks
One of the biggest unsolved problems in condensed matter physics is what mechanism causes high-temperature superconductivity and if there is a material that can exhibit superconductivity at both room temperature and atmospheric pressure. Among the many important properties of a superconductor, the critical temperature…
Sylwia Gutowska, Bartłomiej Wiendlocha, Tomasz Klimczuk, Michał Winiarski
Superconducting properties of two bismuthide intermetallic compounds, RbBi2 and CsBi2, were studied by means of experimental measurements and ab initio calculations. We show that in both compounds the superconductivity emerges from the pyrochlore Bi lattice and its formation is heavily influenced by relativistic…
Fabian Strauss, Zhouxiaosong Zeng, Kai Braun, Marcus Scheele
Transition metal dichalcogenides (TMDCs) exhibit favorable properties for optical communication in the GHz regime, such as large mobilities, high extinction coefficients and silicon compatibility. While impressive improvements of their sensitivity have been realized, the bandwidths of these devices have been mostly…
Matthias Grotevent, Claudio U. Hail, Sergii Yakunin, Dominik Bachmann + 4 more
Infrared light detection enables diverse technologies ranging from night vision to gas analysis. Emerging technologies such as low-cost cameras for self-driving cars require highly sensitive, low-cost photodetector cameras with spectral sensitivities up to wavelength of 10 um. For this purpose, colloidal quantum dot…
Matthias Grotevent, Claudio U. Hail, Sergii Yakunin, Dominik Bachmann + 6 more
Colloidal PbS quantum dot (QD)/graphene hybrid photodetectors are emerging QD technologies for affordable infra-red light detectors. By interfacing the QDs with graphene, the photosignal of these detectors is amplified, leading to high responsivity values. While these detectors have been mainly operated at room…
Yong Xiao Yang, Bao Ting Zhu
It was recently postulated that neural microtubules (neuro-MTs), which are densely packed inside axons and dendrites, are vacuum cylindrical nanotubes that can mediate neuroelectrical transmission with a unique form of quasi-superconductivity. In this work, the behaviors of free electrons inside a theoretical neuro-MT…