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

Gyroscope: Precession01:24

Gyroscope: Precession

Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
Gyroscope01:02

Gyroscope

A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis is unaffected by the orientation of the body that encloses it. The body or vehicle enclosing the gyroscope can be moved from place to place, while the orientation of the spin axis remains the same. This makes gyroscopes very useful in navigation, especially where magnetic compasses cannot be used, such as in crewed and crewless spacecraft,...
Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

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, and the angular frequency...
Dynamics of Circular Motion01:30

Dynamics of Circular Motion

An object undergoing circular motion, like a race car, is accelerating because it is changing the direction of its velocity. This centrally directed acceleration is called centripetal acceleration. This acceleration acts along the radius of the curved path (thus is also referred to as radial acceleration).
Any acceleration must be produced by some force. Therefore, any force or combination of forces can cause centripetal acceleration. A few examples include the tension in the rope on a...
Galvanometer01:24

Galvanometer

Common devices, including car instrument panels, battery chargers, and inexpensive electrical instruments, measure potential difference (voltage), current, or resistance using a d'Arsonval galvanometer. This electromechanical instrument is also known as a moving coil galvanometer.
The galvanometer consists of  two concave-shaped permanent magnets, providing a uniform radial magnetic field in the annular region. In the center, a pivoted coil of fine copper wire is placed in the uniform magnetic...
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...

You might also read

Related Articles

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

Sort by
Same author

Multilayer coatings for a multichannel Wolter-like x-ray imager with large field of view and high resolution: Experimental development and study of the instrument performance.

The Review of scientific instruments·2026
Same author

Association between neoadjuvant paclitaxel dose intensity and outcomes in early triple-negative and HER2-positive breast cancer: a real-world data analysis.

ESMO real world data and digital oncology·2026
Same author

Measurement of the Positive Muon Anomalous Magnetic Moment to 127 ppb.

Physical review letters·2025
Same author

Revealing Dentin Multiscale Structures Using High-Resolution Transmission Electron Microscopy.

Journal of dental research·2025
Same author

Enhancing clinical decision support with genomic tools in breast cancer: A Scottish perspective.

Breast (Edinburgh, Scotland)·2024
Same author

Evaluating newly approved drugs in combination regimens for multidrug-resistant tuberculosis with fluoroquinolone resistance (endTB-Q): study protocol for a multi-country randomized controlled trial.

Trials·2023
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

Related Experiment Video

Updated: Jun 19, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

Ring-laser gyro with spatially resolved eigenstates.

M Vallet, N H Tran, P Tanguy

    Optics Letters
    |October 27, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a novel optical diode using laser eigenstates and the Faraday effect. This device, combined with spatial separation, creates a biased gyroscope without a lock-in band, improving optical sensing.

    More Related Videos

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
    12:57

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

    Related Experiment Videos

    Last Updated: Jun 19, 2026

    Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
    09:00

    Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

    Published on: June 28, 2018

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
    12:57

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

    Area of Science:

    • Optics and Photonics
    • Quantum Optics
    • Optical Sensing

    Background:

    • Ring laser gyroscopes are crucial for inertial navigation and sensing.
    • Lock-in band is a significant limitation in traditional ring laser gyroscopes, causing errors at low rotation rates.
    • Spatial separation of counter-propagating beams is a known technique to mitigate lock-in.

    Purpose of the Study:

    • To investigate a novel bidirectional optical diode for ring geometry applications.
    • To explore the use of Faraday effect and nonreciprocal intracavity losses for diode functionality.
    • To demonstrate a gyroscope with no lock-in band by combining the optical diode with spatial separation.

    Main Methods:

    • Theoretical investigation of laser eigenstates in a ring cavity.
    • Experimental implementation of a bidirectional optical diode utilizing the Faraday effect.
    • Integration of the optical diode with spatial separation techniques for gyroscope application.

    Main Results:

    • Successful theoretical and experimental demonstration of a bidirectional optical diode.
    • The optical diode exhibits nonreciprocal transmission based on the Faraday effect.
    • The combined system (diode + spatial separation) effectively eliminates the lock-in band in the gyroscope.

    Conclusions:

    • A novel optical diode based on laser eigenstates and the Faraday effect is presented.
    • This device, when integrated with spatial separation, provides a practical solution for a lock-in-free biased gyroscope.
    • The findings offer advancements in optical sensing and inertial navigation systems.