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A technology for recording electrical activity of large neuron populations at arbitrary depth in brain tissues with less than cell spatial and millisecond temporal resolutions was the most craving dream of neuroscientists and a long pursued…

Biological Physics · Physics 2013-09-02 Roman V. Beletskiy

Detection of electron paramagnetic resonance (EPR) using a microwave cavity resonating at a fixed frequency (between 9 and 10 GHz) remains the most popular method until now. Here, we report a cavity-less technique which makes use of only an…

Applied Physics · Physics 2020-02-06 Ushnish Chaudhuri , R. Mahendiran

Detecting magnetic noise from small quantities of paramagnetic spins is a powerful capability for chemical, biochemical, and medical analysis. Quantum sensors based on optically addressable spin defects in bulk semiconductors are typically…

We demonstrate that the spin-polarized electron current can interact with a microwave electric field in a resonant manner. The spin-orbit interaction gives rise to an effective magnetic field proportional to the electric current. In the…

Materials Science · Physics 2009-11-10 B. A. Glavin , K. W. Kim

Understanding and controlling decoherence in open quantum systems is of fundamental interest in science, while achieving long coherence times is critical for quantum information processing. Although great progress was made for individual,…

Mesoscale and Nanoscale Physics · Physics 2023-03-23 Lisanne Sellies , Raffael Spachtholz , Philipp Scheuerer , Jascha Repp

Ultrafast electron diffraction (UED) instruments typically operate at kHz or lower repetition rates and rely on indirect detection of electrons. However, these experiments encounter limitations because they are required to use electron…

Chemical Physics · Physics 2024-08-06 Fernando Rodriguez Diaz , Mark Mero , Kasra Amini

In this paper, we show how we can combine Electromagnetics (EM) with signal processing algorithms to enhance the image resolution over that can be realized by using Electromagnetics techniques alone. We discuss several signal processing…

Optics · Physics 2013-05-14 Xiang Gu , Chiara Pelletti , Raj Mittra , Yunhua Zhang

Recent demonstrations of ultracoherent nanomechanical resonators introduce the prospect of new protocols for solid state sensing applications. Here, we propose to use two coupled ultracoherent resonator modes on a Si$_3$N$_4$ membrane for…

Applied Physics · Physics 2020-07-22 J. Košata , O. Zilberberg , Christian L. Degen , R. Chitra , A. Eichler

Biosensing with ferromagnet-based magnetoresistive devices has been dominated by electrical detection of particle-induced changes to the devices' static magnetic configuration. There are however potential advantages to be gained from using…

Rare-earth spin ensembles are a promising platform for microwave quantum memory applications due to their hyperfine transitions, which can exhibit exceptionally long coherence times when using an operation point with zero first-order Zeeman…

We report the development of the frequency-modulation (FM) method for measuring electron spin resonance (ESR) absorption in the 210-420 GHz frequency range. We demonstrate that using a high-frequency ESR spectrometer without resonating…

Strongly Correlated Electrons · Physics 2010-07-14 Balint Nafradi , Richard Gaal , Titusz Feher , Laszlo Forro

We propose a method based on optically detected magnetic resonance (ODMR) to measure the decoherence time $T_{2}$ of a single electron spin in a semiconductor quantum dot. The electron spin resonance (ESR) of a single excess electron on a…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Oliver Gywat , Hans-Andreas Engel , Daniel Loss , R. J. Epstein , F. M. Mendoza , D. D. Awschalom

The contemporary superconductive electronics is widely using planar circuits with micrometer-scale elements for a variety of applications. With the rise of complexity of a circuit and increased number of its components, a simple impedance…

Applied Physics · Physics 2019-07-24 A. Karpov , A. P. Zhuravel , A. S. Averkin , V. I. Chichkov , A. V. Ustinov

Scanning electron microscopy with polarization analysis is a powerful lab-based magnetic imaging technique offering parallel imaging of multiple magnetization components and a very high spatial resolution. However, one drawback of the…

Instrumentation and Detectors · Physics 2018-08-22 Daniel Schönke , Andreas Oelsner , Pascal Krautscheid , Robert M. Reeve , Mathias Kläui

An efficient mass sensor based on exceptional points (EPs), engineered under synthetic magnetism requirement, is proposed. The benchmark system consists of an electromechanical (optomechanical) system where an electric (optical) field is…

Mesoscale and Nanoscale Physics · Physics 2023-02-09 S. R. Mbokop Tchounda , P. Djorwé , S. G. Nana Engo , B. Djafari-Rouhani

We present a methodology for probing the details of electronic susceptibility through minimally-invasive nuclear magnetic resonance techniques. Specifically, we classify electron-mediated long-range interactions in an ensemble of nuclear…

Strongly Correlated Electrons · Physics 2022-08-17 Stephen Carr , Charles Snider , D. E. Feldman , Chandrasekhar Ramanathan , J. B. Marston , V. F. Mitrović

The purpose of this project is to investigate the use of charge couple devices (CCDs) to detect electrons directly. This can be done in transmission electron microscopy (TEM) for electrons over 100 KeV, but for space plasma instruments,…

Instrumentation and Detectors · Physics 2015-10-28 S. R. Mirfayzi

Here, we study the paramagnetic ions behavior in presence of a strong microwave electromagnetic field sustained inside a cryogenic sapphire whispering gallery mode resonator. The high frequency measurement resolution that can be now…

Instrumentation and Detectors · Physics 2015-06-19 Vincent Giordano , Serge Grop , Pierre-Yves Bourgeois , Yann Kersalé , Enrico Rubiola

Measuring local magnetization dynamics and its spatial variation is essential for advancements in spintronics and relevant applications. Here we demonstrate a phase-sensitive imaging technique for studying patterned magnetic structures…

Materials Science · Physics 2015-07-10 Feng Guo , J. M. Bartell , D. H. Ngai , G. D. Fuchs

The rapidly rising fields of spintronics and quantum information science have led to a strong interest in developing the ability to coherently manipulate electron spins. Electron spin resonance (ESR) is a powerful technique to manipulate…

Materials Science · Physics 2009-11-13 M. Pioro-Ladriere , T. Obata , Y. Tokura , Y. -S. Shin , T. Kubo , K. Yoshida , T. Taniyama , S. Tarucha
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