Results 61 to 70 of about 34,597 (219)

Quantum enhanced optomechanical magnetometry [PDF]

open access: yesOptica, 2018
The resonant enhancement of both mechanical and optical response in microcavity optomechanical devices allows exquisitely sensitive measurements of stimuli such as acceleration, mass and magnetic fields. In this work, we show that quantum correlated light can improve the performance of such sensors, increasing both their sensitivity and their bandwidth.
Bei-Bei Li   +9 more
openaire   +4 more sources

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

Compact and Fully Integrated LED Quantum Sensor Based on NV Centers in Diamond

open access: yesSensors
Quantum magnetometry based on optically detected magnetic resonance (ODMR) of nitrogen vacancy centers in diamond nano or microcrystals is a promising technology for sensitive, integrated magnetic-field sensors.
Jens Pogorzelski   +5 more
doaj   +1 more source

Squeezed-Light Optical Magnetometry [PDF]

open access: yesPhysical Review Letters, 2010
We demonstrate a light-shot-noise-limited magnetometer based on the Faraday effect in a hot unpolarized ensemble of rubidium atoms. By using off-resonant, polarization-squeezed probe light, we improve the sensitivity of the magnetometer by 3.2 dB. The technique could improve the sensitivity of the most advanced magnetometers and quantum nondemolition ...
Wolfgramm, Florian   +5 more
openaire   +3 more sources

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

open access: yesAdvanced Functional Materials, EarlyView.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog   +3 more
wiley   +1 more source

Toxicity and magnetometry evaluation of the uptake of core-shell maghemite-silica nanoparticles by neuroblastoma cells

open access: yesRoyal Society Open Science
Nanoparticle uptake by cells is a key parameter in their performance in biomedical applications. However, the use of quantitative, non-destructive techniques to obtain the amount of nanoparticles internalized by cells is still uncommon.
Raúl López-Martín   +9 more
doaj   +1 more source

Joint use of inverse gravity problem methods to increase interpretation informativity

open access: yesГеофизический журнал, 2015
This paper offers classification of information types that may be contained in the results of solving inverse gravity and magnetometry problems.
P. Balk   +3 more
doaj   +1 more source

Nanotorsional resonator torque magnetometry [PDF]

open access: yesApplied Physics Letters, 2010
8 pages preprint, 4 figures, accepted to Appl.
Davis, J. P.   +5 more
openaire   +2 more sources

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

A Lightweight Prototype of a Magnetometric System for Unmanned Aerial Vehicles

open access: yesSensors, 2021
Detection of the Earth’s magnetic field anomalies is the basis of many types of studies in the field of earth sciences and archaeology. These surveys require different ways to carry out the measures but they have in common that they can be very tiring or
Antonino Pisciotta   +5 more
doaj   +1 more source

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