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

Angular Momentum: Single Particle01:10

Angular Momentum: Single Particle

Angular momentum is directed perpendicular to the plane of the rotation, and its magnitude depends on the choice of the origin. The perpendicular vector joining the linear momentum vector of an object to the origin is called the “lever arm.” If the lever arm and linear momentum are collinear, then the magnitude of the angular momentum is zero. Therefore, in this case, the object rotates about the origin such that it lies on the rim of the circumference defined by the lever arm magnitude.
The...
Conservation of Angular Momentum01:09

Conservation of Angular Momentum

A system's total angular momentum remains constant if the net external torque acting on the system is zero. Considering a system that consists of n tiny particles, the angular momentum of any tiny particle may change, but the system's total angular momentum would remain constant. The principle of conservation of angular momentum only considers the net external torque acting on the system. While there are internal forces exerted by different particles within the system that also produce internal...
Angular Momentum01:21

Angular Momentum

Angular momentum characterizes an object's rotational motion and is defined as the moment of its linear momentum about a specified point O. When a particle moves along a curved path in the x-y plane, the scalar formulation calculates the magnitude of its angular momentum, utilizing the moment arm (d), representing the perpendicular distance from point O to the line of action of the linear momentum. Despite being scalar in formulation, angular momentum is inherently a vector quantity. Its...
Conservation of Angular Momentum: Application01:18

Conservation of Angular Momentum: Application

A system's total angular momentum remains constant if the net external torque acting on the system is zero. Examples of such systems include a freely spinning bicycle tire that slows over time due to torque arising from friction, or the slowing of Earth's rotation over millions of years due to frictional forces exerted on tidal deformations. However in the absence of a net external torque, the angular momentum remains conserved. The conservation of angular momentum principle requires a change...
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...
Angular Momentum about an Arbitrary Axis01:11

Angular Momentum about an Arbitrary Axis

Imagine a rigid body with a mass denoted as 'm', which has its center of mass at point G and is rotating around an inertial reference frame. The angular momentum at an arbitrary point P can be calculated by taking the cross product of the position vector and linear momentum vector for each individual mass element.
The velocity of a mass element comprises its translational velocity and the relative velocity instigated by the body's rotation. Substituting the velocity equation into the angular...

You might also read

Related Articles

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

Sort by
Same author

Generalized Essential Telangiectasia Treated With Pulsed Dye Laser: A Case Series of 12 Patients.

Actas dermo-sifiliograficas·2026
Same author

Experimental realization of para-particle oscillators.

Scientific reports·2025
Same author

Assessing the Safety and Efficacy of a New 532-nm and 1064-nm Laser Device With Variable Sequencing and Cryogen Spray Cooling for Rosacea Treatment.

Actas dermo-sifiliograficas·2025
Same author

Assessing the Safety and Efficacy of a New 532-nm and 1064-nm Laser Device With Variable Sequencing and Cryogen Spray Cooling for Rosacea Treatment.

Actas dermo-sifiliograficas·2025
Same author

Orbital angular momentum coherent state beams.

Optics letters·2025
Same author

[Translated article] Real-World Clinical, Psychosocial and Financial Burden of Atopic Dermatitis: Results from the Spanish Cohort of the MEASURE-AD Trial.

Actas dermo-sifiliograficas·2024

Related Experiment Video

Updated: Jun 3, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Total angular momentum coherent state fields.

D Aguirre-Olivas, G Mellado-Villaseñor, B Perez-Garcia

    Optics Letters
    |June 1, 2026
    PubMed
    Summary
    This summary is machine-generated.

    We developed a new framework for structured light fields, combining spin and orbital angular momentum. This enables precise control over light

    More Related Videos

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    07:56

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    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

    Related Experiment Videos

    Last Updated: Jun 3, 2026

    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    07:56

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    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

    Area of Science:

    • Physics, Optics, Quantum Information

    Background:

    • Structured light fields utilize spin and orbital angular momentum.
    • Applications include precision manipulation, advanced imaging, and high-capacity communication.

    Purpose of the Study:

    • To develop a paraxial modal framework coupling circular polarization with Laguerre-Gaussian modes.
    • To generate total angular momentum fields and coherent state fields.
    • To enable joint control of polarization and spatial structure with a single parameter.

    Main Methods:

    • Coupling circular polarization basis (spin-1/2 representation of su(2)) with finite-dimensional Laguerre-Gaussian modal subspaces.
    • Utilizing Clebsch-Gordan decomposition for total angular momentum fields.
    • Defining total angular momentum coherent state fields via SU(2) rotation.

    Main Results:

    • Developed a framework for structured light with coupled spin and orbital angular momentum.
    • Generated fields with joint polarization and spatial structure control via a single complex parameter.
    • Demonstrated self-similar propagation preserving transverse polarization and spatial structure.

    Conclusions:

    • The developed framework provides a novel method for generating and controlling structured light fields.
    • The fields exhibit self-similar propagation, maintaining their properties.
    • A proof-of-principle experiment validates the feasibility of this construction for advanced applications.