Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

2.5K
The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession,...
2.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Global breast cancer survival estimates in 2017-2021 to advance the WHO Global Breast Cancer Initiative.

Nature medicine·2026
Same author

Activation of BK channels ameliorates cardiac injury Via NFκB-NLRP3 signaling in angiotensin II-induced hypertension mouse model.

Frontiers in pharmacology·2026
Same author

CircCOL3A1 Drives Trophoblast Ferroptosis Through TIAL1-p53 Axis to Promote Preeclampsia Progression.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology·2026
Same author

BEACON: AIE-based point-of-care test for cross-species Brucella antibody detection.

Talanta·2026
Same author

Global, regional, and national levels and trends in older child, adolescent, and youth (5-24 years) all cause mortality from 1990 to 2024: modelling study.

BMJ (Clinical research ed.)·2026
Same author

Light-Controlled Battery-Integrated Nerve Conduit for Peripheral Nerve Pain Management.

ACS nano·2026

Related Experiment Video

Updated: Dec 21, 2025

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

7.5K

All-optical self-oscillating 4He atomic mangnetometer with optical phase shift.

Haidong Wang, Teng Wu, He Wang

    Optics Express
    |May 15, 2020
    PubMed
    Summary
    This summary is machine-generated.

    This study demonstrates an all-optical self-oscillating Helium-4 atomic magnetometer. This advanced magnetometer offers a large dynamic range and fast response for geomagnetic field monitoring.

    More Related Videos

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    14.9K
    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
    15:58

    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

    Published on: December 3, 2013

    6.0K

    Related Experiment Videos

    Last Updated: Dec 21, 2025

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
    08:01

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

    Published on: November 21, 2019

    7.5K
    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    14.9K
    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
    15:58

    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

    Published on: December 3, 2013

    6.0K

    Area of Science:

    • Atomic physics
    • Geophysics
    • Optical instrumentation

    Background:

    • Atomic magnetometers are crucial for measuring magnetic fields.
    • Self-oscillating magnetometers offer fast response but can be affected by RF fields and nonlinear Zeeman effects.
    • Existing technologies may have limitations in dynamic range and gradient tolerance.

    Purpose of the Study:

    • To demonstrate an all-optical self-oscillating 4He atomic magnetometer with a large dynamic range.
    • To overcome limitations of existing self-oscillating magnetometers, such as RF field interference and nonlinear Zeeman effects.
    • To evaluate the performance of the developed magnetometer for geomagnetic field monitoring.

    Main Methods:

    • Utilized an all-optical setup for a self-oscillating 4He atomic magnetometer.
    • Employed a liquid crystal for frequency-independent phase shift adjustment.
    • Characterized the magnetometer's response time, noise floor, and operational magnetic field range.

    Main Results:

    • Achieved a response time of 0.2 ms for a 3600 nT step signal.
    • Demonstrated a noise floor of 1.7 pT/√Hz from 2 Hz to 500 Hz.
    • Confirmed stable operation in magnetic fields from 2500 nT to 103000 nT, showing superior gradient tolerance compared to commercial cesium magnetometers.

    Conclusions:

    • The all-optical self-oscillating 4He atomic magnetometer provides a large dynamic range and fast response.
    • This device is free from RF field systematic errors and nonlinear Zeeman effects in high magnetic fields.
    • The magnetometer is well-suited for magnetic observatories requiring high bandwidth and large dynamic range for geomagnetic field monitoring.