Dual-beam room-temperature atomic magnetometer with high sensitivity and large dynamic range

Article Optics

Magneto-optical rotation: accurate approximated analytical solutions for single-probe atomic magnetometers

Lu Deng et al.

Summary: We present an approximated analytical solution for single-probe four-state atomic magnetometer and three-state atomic magnetometer, showing good accuracy even in small detuning regions.

OPTICS EXPRESS (2022)

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Article Optics

Theory of colliding-probe atomic magnetometry: breaking the symmetry-enforced magneto-optical rotation blockade

L. Deng

Summary: We theoretically demonstrate the presence of an optical field polarization rotation blocking mechanism in single-probe-based magnetic field sensing schemes, explaining the extremely small nonlinear magneto-optical rotation (NMOR) signal in single-probe-based atomic magnetometers. We propose a colliding-probe atomic magnetometer theory that analytically describes the principle of the first nonlinear-optical atomic magnetometer. This technique overcomes the NMOR blockade in single-probe atomic magnetometers, leading to significant enhancement in NMOR signal and improved magnetic field detection sensitivity. Remarkably, the theory can qualitatively explain all experimental observations reported so far without requiring numerical computations. This colliding-probe atomic magnetometry technique has potential applications in various scientific and technological fields, including micro-Tesla magnetic resonance imaging and cosmic particle detection.

OPTICS EXPRESS (2022)

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Article Optics

High bandwidth laser frequency locking for wideband noise suppression

Mingyong Jing et al.

Summary: Ultra-low frequency noise lasers are commonly used in laser-based experiments, with narrow-linewidth lasers typically implementing frequency noise suppression through FNSLs. The article presents an experimental FNSL with a loop-delay-limited 3.5 MHz LBW, achieving significant noise suppression in a wide Fourier frequency range. This technology has broad applications where wideband laser frequency noise suppression is necessary.

OPTICS EXPRESS (2021)

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Article Physics, Applied

Single-beam three-axis optically pumped magnetometers with sub-100 femtotesla sensitivity

Wei Xiao et al.

Summary: The study presents a single-beam three-axis parametric-resonance magnetometer operated in near-zero fields, capable of extracting three components of the magnetic field in real time. It demonstrates excellent magnetic-field sensitivities and compact structure, making it ideal for applications requiring highly sensitive measurements of the vector components of magnetic fields.

APPLIED PHYSICS EXPRESS (2021)

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Article Physics, Applied

Analysis of coil constant of triaxial uniform coils in Mn-Zn ferrite magnetic shields

Danyue Ma et al.

Summary: This study investigates the relationship between coil constant and various factors in triaxial uniform coils housed in magnetic shields. Results indicate that the coil constant is affected by distance, air gap width, aspect ratio, and shield thickness. When the shield thickness exceeds 2mm, the coil constants become independent of the shield thickness. The numerical calculation accuracy was confirmed by experimental measurements, which can benefit the design and research of coils in ferrite magnetic shield in atomic sensors.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2021)

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Article Physics, Applied

Electromagnetic induction imaging with a scanning radio frequency atomic magnetometer

Cameron Deans et al.

Summary: This study demonstrates electromagnetic induction imaging using an unshielded, portable radio frequency atomic magnetometer scanning over the target object. The ability to scan the magnetometer over the object relies on sensor head miniaturization, active compensation of the ambient magnetic field, and a dedicated procedure to extract high-quality images from the recorded spatial dependent magnetic resonance.

APPLIED PHYSICS LETTERS (2021)

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Article Physics, Applied

Single-Beam All-Optical Nonzero-Field Magnetometric Sensor for Magnetoencephalography Applications

M. Petrenko et al.

Summary: A new method for measuring magnetic fields using a single laser beam with time-modulated ellipticity is introduced, allowing for hyperfine and Zeeman optical pumping, excitation and detection of magnetic resonance. This method simplifies the Bell-Bloom magnetometric scheme while maintaining sensitivity and eliminating the need for radio-frequency fields, making it ideal for creating sensor arrays. Experimental studies show the efficiency of the method for challenging magnetoencephalographic tasks.

PHYSICAL REVIEW APPLIED (2021)

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Review Multidisciplinary Sciences

Zero- to ultralow-field nuclear magnetic resonance and its applications

Min Jiang et al.

Summary: ZULF NMR, as a complementary analysis tool to traditional high-field NMR, detects nuclear magnetization signals in the sub-microtesla regime. With features such as low cost, high resolution, and portability, ZULF NMR has recently attracted considerable attention in various fields. The basic principles, methodology, and applications of ZULF NMR are continuously developing, with promising future prospects.

FUNDAMENTAL RESEARCH (2021)

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Article Physics, Applied

Three-axis atomic magnetometer for nuclear magnetic resonance gyroscopes

Xuyang Qiu et al.

APPLIED PHYSICS LETTERS (2020)

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Article Physics, Applied

Sub-Sm-1 electromagnetic induction imaging with an unshielded atomic magnetometer

Cameron Deans et al.

APPLIED PHYSICS LETTERS (2020)

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Article Multidisciplinary Sciences

Sub-Hertz resonance by weak measurement

Weizhi Qu et al.

NATURE COMMUNICATIONS (2020)

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Article Physics, Applied

Magnetocardiography with a 16-channel fiber-coupled single-cell Rb optically pumped magnetometer

Young Jin Kim et al.

APPLIED PHYSICS LETTERS (2019)

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Article Physics, Multidisciplinary

Search for new physics with atoms and molecules

M. S. Safronova et al.

REVIEWS OF MODERN PHYSICS (2018)

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Article Multidisciplinary Sciences

Moving magnetoencephalography towards real-world applications with a wearable system

Elena Boto et al.

NATURE (2018)

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Article Physics, Applied

Breaking the Energy-Symmetry-Based Propagation Growth Blockade in Magneto-Optical Rotation

Chengjie Zhu et al.

PHYSICAL REVIEW APPLIED (2018)

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Article Instruments & Instrumentation

Magnetoencephalography with a Cs-based high-sensitivity compact atomic magnetometer

Jingwei Sheng et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2017)

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Review Instruments & Instrumentation

Invited Review Article: Instrumentation for nuclear magnetic resonance in zero and ultralow magnetic field

Michael C. D. Tayler et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2017)

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Article Multidisciplinary Sciences

Symmetry-breaking inelastic wave-mixing atomic magnetometry

Feng Zhou et al.

SCIENCE ADVANCES (2017)

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Article Optics

Far off-resonance laser frequency stabilization using multipass cells in Faraday rotation spectroscopy

Wei Quan et al.

APPLIED OPTICS (2016)

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Article Neurosciences

Multi-channel atomic magnetometer for magnetoencephalography: A configuration study

Kiwoong Kim et al.

NEUROIMAGE (2014)

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Article Optics

Magneto-optical spectroscopy with polarization-modulated light

E. Breschi et al.

PHYSICAL REVIEW A (2013)

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Article Physics, Multidisciplinary

Subfemtotesla Scalar Atomic Magnetometry Using Multipass Cells

D. Sheng et al.

PHYSICAL REVIEW LETTERS (2013)

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Article Physics, Applied

A remotely interrogated all-optical 87Rb magnetometer

B. Patton et al.

APPLIED PHYSICS LETTERS (2012)

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Article Physics, Applied

Ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer

H. B. Dang et al.

APPLIED PHYSICS LETTERS (2010)

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Article Physics, Multidisciplinary

Polarized Alkali-Metal Vapor with Minute-Long Transverse Spin-Relaxation Time

M. V. Balabas et al.

PHYSICAL REVIEW LETTERS (2010)

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Article Physics, Multidisciplinary

Squeezed-Light Optical Magnetometry

Florian Wolfgramm et al.

PHYSICAL REVIEW LETTERS (2010)

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Article Engineering, Electrical & Electronic

Magnetic Anomaly Detection Using a Three-Axis Magnetometer

Arie Sheinker et al.

IEEE TRANSACTIONS ON MAGNETICS (2009)

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Article Physics, Applied

Magnetometry based on nonlinear magneto-optical rotation with amplitude-modulated light

S. Pustelny et al.

JOURNAL OF APPLIED PHYSICS (2008)

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Article Optics

Spin-exchange-relaxation-free magnetometry with Cs vapor

M. P. Ledbetter et al.

PHYSICAL REVIEW A (2008)

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Review Physics, Multidisciplinary

Optical magnetometry

Dmitry Budker et al.

NATURE PHYSICS (2007)

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Article Optics

Nonlinear magneto-optical rotation with frequency-modulated light in the geophysical field range

V. Acosta et al.

PHYSICAL REVIEW A (2006)

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Article Multidisciplinary Sciences

A subfemtotesla multichannel atomic magnetometer

IK Kominis et al.

NATURE (2003)

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Review Physics, Multidisciplinary

Resonant nonlinear magneto-optical effects in atoms

D Budker et al.

REVIEWS OF MODERN PHYSICS (2002)

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Article Physics, Multidisciplinary

High-sensitivity atomic magnetometer unaffected by spin-exchange relaxation

JC Allred et al.

PHYSICAL REVIEW LETTERS (2002)

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Article Optics

Sensitive magnetometry based on nonlinear magneto-optical rotation

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PHYSICAL REVIEW A (2000)

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Dual-beam room-temperature atomic magnetometer with high sensitivity and large dynamic range

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