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We report a new technique for generating magnetic resonance with synchronous modulation of two-photon resonant light fields. Magnetic resonances in fluorescence from a sodium cell are measured to demonstrate suitability of this technique…

Atomic Physics · Physics 2020-07-29 Raghwinder Singh Grewal , Mauricio Pulido , Gour Pati , Renu Tripathi

We report on experimental and theoretical investigations of the polarization dependence of magnetic resonance generated by synchronous optical pumping. Magnetic resonances with narrow linewidth are generated experimentally using a rubidium…

Atomic Physics · Physics 2020-09-09 Raghwinder Singh Grewal , Gour Pati , Renu Tripathi

This work presents polarization-selective photon-magnon coupling (PMC) in a planar cavity-magnonic platform consisting of an electric-LC resonator (ELCR) side-coupled to a microstrip transmission line and integrated with a yttrium iron…

Quantum Physics · Physics 2026-05-07 Abhishek Maurya , Sachin Verma , Bojong Kim , Biswanath Bhoi , Rajeev Singh , Sang-Koog Kim

A self-oscillating magnetometer based on nonlinear magneto-optical rotation using amplitude-modulated pump light and unmodulated probe light (AM-NMOR) in 87Rb has been constructed and tested towards a goal of airborne detection of magnetic…

Atomic Physics · Physics 2015-05-18 Chris Hovde , Brian Patton , Eric Corsini , James Higbie , Dmitry Budker

Ultrasensitive magnetometers based on spin resonances have led to remarkable achievements. However, the gyromagnetic ratios of these spin resonances that determine the responsivity of magnetometers to weak magnetic fields are inherently…

Mesoscale and Nanoscale Physics · Physics 2025-07-14 Xinlin Mi , Jinwei Rao , Lijun Yan , Xudong Wang , Bingbing Lyu , Bimu Yao , Shishen Yan , Lihui Bai

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 present a method for measuring the magnetic field that allows hyperfine and Zeeman optical pumping, excitation and detection of magnetic resonance by means of a single laser beam with time-modulated ellipticity. This improvement allows…

Optics · Physics 2026-04-28 M. V. Petrenko , A. S. Pazgalev , A. K. Vershovskii

The nonlinear magneto-optical effect has significantly impacted modern society with prolific applications ranging from precision mapping of the Earth's magnetic field to bio-magnetic sensing. Pioneering works on collisional spin-exchange…

Optics · Physics 2016-09-05 Feng Zhou , Chengjie Zhu , E. W. Hagley , L. Deng

The local magnetic field in a Penning-Malmberg trap is found by measuring the temperatures that result when electron plasmas are illuminated by microwaves pulses. Multiple heating resonances are observed as the pulse frequencies are swept.…

Plasma Physics · Physics 2020-03-18 E. D. Hunter , A. Christensen , J. Fajans , T. Friesen , E. Kur , J. S. Wurtele

The idea of isotropic resonant magnetism in the visible range of frequencies known from precedent publications is developed having in mind achievements of the modern chemistry. Plasmonic colloidal nanoparticles covering a silica core form a…

Optics · Physics 2008-06-24 C. R. Simovski , S. A. Tretyakov

Precise magnetometry is vital in numerous scientific and technological applications. At the forefront of sensitivity, optical atomic magnetometry, particularly techniques utilizing nonlinear magneto-optical rotation (NMOR), enables…

Optics · Physics 2024-12-31 S. Pustelny , P. Włodarczyk

Undoubtedly, Raman spectroscopy is one of the most elaborated spectroscopy tools in materials science, chemistry, medicine and optics. However, when it comes to the analysis of nanostructured specimens, accessing the Raman spectra resulting…

In this article, operation of optical magnetometers detecting static (DC) and oscillating (AC) magnetic fields is studied and comparison of the devices is performed. To facilitate the comparison, the analysis is carried out in the same…

Atomic Physics · Physics 2019-04-02 Piotr Put , Kacper Popiołek , Szymon Pustelny

A rigorous analytical theory of parametric excitation under the longitudinal pumping has been developed for the surface magnetostatic modes of a long elliptic ferrite cylinder magnetized along its axis with regard for the boundary…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 M. A. Popov

We propose a novel paradigm to vector magnetometry based on machine learning. Unlike conventional schemes where one measured signal explicitly connects to one parameter, here we encode the three-dimensional magnetic-field information in the…

Instrumentation and Detectors · Physics 2023-10-04 Xin Meng , Youwei Zhang , Xichang Zhang , Shenchao Jin , Tingran Wang , Liang Jiang , Liantuan Xiao , Suotang Jia , Yanhong Xiao

Accelerator magnets steer particle beams according to the field integrated along the trajectory over the magnet length. Purpose-wound coils measure these relevant parameters with high precision and complement efficiently point-like…

Accelerator Physics · Physics 2011-04-20 L. Walckiers

Ellipsometry is a powerful and well-established optical technique used in the characterisation of materials. It works by combining the components of elliptically polarized light in order to draw information about the optical system. We…

Optics · Physics 2018-03-15 Manoel P. Araújo , Stefano De Leo , Gabriel G. Maia

We propose a method for sensitive parallel detection of low-frequency electromagnetic fields based on the fine structure interactions in paramagnetic polar molecules. Compared to the recently implemented scheme employing ultracold $^{87}$Rb…

Atomic Physics · Physics 2013-04-25 Sergey V. Alyabyshev , Mikhail Lemeshko , Roman V. Krems

Magnetic Detection Electrical Impedance Tomography is a novel technique that could enable non-invasive imaging of fast neural activity in the brain. However, commercial magnetometers are not suited to its technical requirements.…

Medical Physics · Physics 2024-12-19 Kai Mason , Florencia Maurino-Alperovich , Kirill Aristovich , David Holder

Electron paramagnetic resonance (EPR) is a valuable tool for physics, chemistry, biology and medicine, providing complementary spectroscopic information to NMR. It has long been known that EPR at high magnetic fields offers greater spectral…