Results 141 to 150 of about 1,959,593 (353)

Microwave Photodetection with Superconducting Circuits

open access: yes, 2019
[EN] Single-photon photodetection of propagating microwaves is a long-standing question in the area of superconducting circuits. Initially, it was merely a scientific question, since applications of propagating quantum microwaves in the last decades did not requiere this device.
openaire   +1 more source

Surface Engineering Enabled Capacitive Gas‐Phase Water Molecule Sensors in Carbon Nanodots

open access: yesAdvanced Science, EarlyView.
A surface engineering strategy is developed to tune the molecular affinity of carbon nanodots (CDs), leading to capacitive sensors with an impressive detection range from 11% to 98% relative humidity (RH). These sensors demonstrate high sensitivity, with 3.3 × 105 pF/RH, and an exceptional response of 1.8 × 108 % at 98% RH.
Jin‐Xu Qin   +11 more
wiley   +1 more source

Narrowband Electromagnetic Coupling Matrix in Coupled-Resonator Microwave Circuits [PDF]

open access: yesarXiv
A novel methodology to unleash electromagnetic coupling matrix information in coupled-resonator microwave circuits has been recently proposed [1]. This information is derived from Maxwell's equations and the natural language of electromagnetics is employed. As a result, the coupling matrix coefficients stand only for electromagnetics.
arxiv  

MMIC broadband analog phase shifter and gain circuit for frequency-tunable microwave planar multipole active filter categories [PDF]

open access: bronze, 2000
A. Cenac   +4 more
openalex   +1 more source

Laser Ultrafast Confined Alloying of Sub‐5 nm RuM (M = Cu, Rh, and Pd) Particles on Carbon Nanotubes for Hydrogen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
In this work, the synthesis of carbon nanotubes (CNTs) supported sub‐5 nm dominant intermetallic RuCu, RuRh, and RuPd NPs are succeeded by the proposed method of nanosecond laser ultrafast confined alloying (LUCA), which is featured by its unique ultrafast heating and cooling rates and high stability for long‐term alkaline HER catalysis application ...
Taiping Hu   +9 more
wiley   +1 more source

Microwave quantum diode

open access: yesNature Communications
The fragile nature of quantum circuits is a major bottleneck to scalable quantum applications. Operating at cryogenic temperatures, quantum circuits are highly vulnerable to amplifier backaction and external noise.
Rishabh Upadhyay   +6 more
doaj   +1 more source

Broadband, Wide‐Angle, and Versatile Metasurface Illusions with Inverse Synthetic Aperture Radar Imaging

open access: yesAdvanced Science, EarlyView.
“Illusion” is a captivating topic throughout human civilization. This research proposes an advanced multi‐layer metasurface illusion strategy utilizing a technique known as “inverse synthetic aperture radar (ISAR)” imaging, enabling the creation of illusions over broadband and wide‐angle.
Haoran Li   +12 more
wiley   +1 more source

Electrical Manipulation of Field‐Free Magnetization Switching Driven by Spin‐Orbit Torque in Amorphous Gradient‐Mn3Sn

open access: yesAdvanced Science, EarlyView.
A highly efficient spin current with z‐polarization is achieved in amorphous Mn3Sn with a spontaneous composition gradient, which allows field‐free magnetization switching. Spin current efficiency and magnetization switching polarity are reversibly manipulated by ionic liquid gating, enabling logic functions by pure electrical methods. This work offers
Mingfang Zhang   +13 more
wiley   +1 more source

Superconducting circuit microwave photonics

open access: yes, 2015
Leeds, 15 December 2015; seminars/calendar-item/article/theoretical-physics-seminar-juan-jose-garcia-ripoll-instituto-de-fisica-fundamental-1 ...
openaire   +2 more sources

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