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We present an experimental study of the intrinsic magnetometric sensitivity of an optical/rf-frequency double resonance magnetometer in which linearly polarized laser light is used in the optical pumping and detection processes. We show…

Atomic Physics · Physics 2009-11-13 G. Di Domenico , H. Saudan , G. Bison , P. Knowles , A. Weis

The method of operation of an atomic magnetometer based on coherent population trapping (CPT) without any requirement of radio frequency scanning is demonstrated. Using a hybrid approach comprising of polarization rotation and tailored…

Atomic Physics · Physics 2013-03-25 S. Pradhan , S. Mishra , A. K. Das

Precision sensing, and in particular high precision magnetometry, is a central goal of research into quantum technologies. For magnetometers, often trade-offs exist between sensitivity, spatial resolution, and frequency range. The…

Quantum Physics · Physics 2016-06-22 I. Baumgart , J. -M. Cai , A. Retzker , M. B. Plenio , Ch. Wunderlich

Magnetic oscillation is a generic property of electronic conductors under magnetic fields and widely appreciated as a useful probe of their electronic band structure, i.e., the Fermi surface geometry. However, the usage of the strong static…

Strongly Correlated Electrons · Physics 2018-10-31 Hiroyuki Fujita , Masahiro Sato

Atomic magnetometry was performed at Earth's magnetic field over a free-space distance of ten meters. Two laser beams aimed at a distant alkali-vapor cell excited and detected the $^{87}$Rb magnetic resonance, allowing the magnetic field…

Atomic Physics · Physics 2015-06-11 Brian Patton , Oscar Versolato , D. Chris Hovde , Eric Corsini , James Higbie , Dmitry Budker

We describe a technique for mapping the spatial variation of static electric, static magnetic, and rf magnetic fields using a pulsed atomic or molecular beam. The method is demonstrated using a beam designed to measure the electric dipole…

Atomic Physics · Physics 2009-11-13 J. J. Hudson , H. T. Ashworth , D. M. Kara , M. R. Tarbutt , B. E. Sauer , E. A. Hinds

Optically pumped magnetometers (OPMs) have demonstrated significant potential in weak magnetic field detection due to their high sensitivity. In this study, we developed an Mz-type optically pumped rubidium magnetometer using a…

Atomic Physics · Physics 2026-04-06 Zhengyu Su , Yang Li , Yongbiao Yang , Yanhua Wang , Jun He , Junmin Wang

We demonstrate remote detection of rotating machinery, using an atomic magnetometer at room temperature and in an unshielded environment. The system relies on the coupling of the AC magnetic signature of the target with the spin-polarized,…

Instrumentation and Detectors · Physics 2017-01-20 Luca Marmugi , Lorenzo Gori , Sarah Hussain , Cameron Deans , Ferruccio Renzoni

In this study we present a new method of measuring magnetostriction with an atomic force microscope adapted for the application magnetic fields. The experiment allows us to visualise, in an elegant and educational way how the lateral…

Materials Science · Physics 2007-05-23 A. C. Papageorgopoulos , H. Wang , C. Guerrero , N. Garcia

The interaction of orbital electrons with the charge and magnetic moment of the nucleus polarizes it, and the detailed description requires a careful treatment of the nuclear vector polarizability. We present a complete and closed form…

Atomic Physics · Physics 2009-11-13 Krzysztof Pachucki

Multi-loop matter-wave interferometers are essential in quantum sensing to measure the derivatives of physical quantities in time or space. Because multi-loop interferometers require multiple reflections, imperfections of the matter-wave…

Atomic Physics · Physics 2020-11-24 L. A. Sidorenkov , R. Gautier , M. Altorio , R. Geiger , A. Landragin

Silicon vacancy in silicon carbide has drawn much attention for various quantum sensing. However, most of the previous experiments are achieved using confocal scanning systems, which limit its applications in practical applications. In this…

Quantum Physics · Physics 2023-03-22 Wei-Ke Quan , Lin Liu , Qin-Yue Luo , Xiao-Di Liu , Jun-Feng Wang

We present the design and operation of a fiber-based cryogenic confocal microscope. It is designed as a compact cold-finger that fits inside the bore of a superconducting magnet, and which is a modular unit that can be easily swapped…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Maksym Sladkov , M. P. Bakker , A. U. Chaubal , D. Reuter , A. D. Wieck , C. H. van der Wal

Lorentz Transmission Electron Microscopy (TEM) observations of magnetic nanoparticles contain information on the magnetic and electrostatic potentials. Vector Field Electron Tomography (VFET) can be used to reconstruct electromagnetic…

Computation · Statistics 2017-04-28 Prabhat KC , K. Aditya Mohan , Charudatta Phatak , Charles Bouman , Marc De Graef

On a basis of extensive analytical and numerical studies we show that a linear-polarized microwave field creates a stationary magnetization in mesoscopic ballistic quantum dots with two-dimensional electron gas being at a thermal…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. D. Chepelianskii , D. L. Shepelyansky

This paper presents a new method to determine all components of the electric field gradient tensor and orientation of the hyperfine magnetic field axis in the absorber Cartesian frame for M\"ossbauer spectroscopy for nuclear transitions…

Instrumentation and Detectors · Physics 2018-12-05 Krzysztof R. Szymański

We present a method for determining directions of magnetic field vectors in a spiral galaxy using two synchrotron polarization maps, an optical image, and a velocity field. The orientation of the transverse magnetic field is determined with…

Astrophysics of Galaxies · Physics 2019-02-18 Hiroyuki Nakanishi , Kohei Kurahara , Kenta Anraku

Electric and magnetic fields are inherently coupled in an electromagnetic wave. However, structured light beams enable their spatial separation. In particular, azimuthally polarized laser beams exhibit a localized magnetic field on-axis…

Atomic Physics · Physics 2025-11-19 R. P. Schmidt , S. Martin-Domene , A. A. Peshkov , C. Hernandez-Garcia , A. Surzhykov

Ultra-cold atoms can be manipulated using microfabricated devices known as atom chips. These have significant potential for applications in sensing, metrology and quantum information processing. To date, the chips are loaded by transfer of…

We present two magnetometry-based methods suitable for assessing gradients in the critical temperature and hence the composition of multifilamentary superconductors: AC magnetometry and Scanning Hall Probe Microscopy. The novelty of the…

Superconductivity · Physics 2016-11-22 T. Baumgartner , J. Hecher , J. Bernardi , S. Pfeiffer , C. Senatore , M. Eisterer