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 Momentum01:21

Angular Momentum

1.1K
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...
1.1K
Conservation of Angular Momentum: Application01:18

Conservation of Angular Momentum: Application

8.8K
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...
8.8K
Angular Momentum: Single Particle01:10

Angular Momentum: Single Particle

5.8K
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...
5.8K
Conservation of Angular Momentum01:09

Conservation of Angular Momentum

12.6K
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...
12.6K
Principle of Angular Impulse and Momentum01:23

Principle of Angular Impulse and Momentum

1.5K
The angular impulse and momentum principle provides insights into how forces applied at a distance from an object's rotational axis influence its angular velocity. It builds upon the crucial relationship between the moment of force and angular momentum. By integrating this equation, substituting the limits for the initial and final times, a comprehensive expression representing the angular impulse and momentum principle is derived.
1.5K
Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

3.5K
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,...
3.5K

You might also read

Related Articles

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

Sort by
Same author

Input to the European strategy for particle physics: strong-field quantum electrodynamics.

European physical journal plus·2025
Same author

Laser based 100 GeV electron acceleration scheme for muon production.

Scientific reports·2025
Same author

Efficient laser wakefield accelerator in pump depletion dominated bubble regime.

Physical review. E·2024
Same author

First reported long-term two- and three-dimensional echocardiographic follow-up with histopathological analysis of a transcatheter pulmonary valve implantation in a pet dog.

Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2024
Same author

Modeling terahertz emissions from energetic electrons and ions in foil targets irradiated by ultraintense femtosecond laser pulses.

Physical review. E·2024
Same author

High Average Gradient in a Laser-Gated Multistage Plasma Wakefield Accelerator.

Physical review letters·2023
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: May 7, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
11:20

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

Published on: July 2, 2012

16.9K

Angular-momentum evolution in laser-plasma accelerators.

C Thaury1, E Guillaume, S Corde

  • 1Laboratoire d'Optique Appliquée, ENSTA ParisTech-CNRS UMR7639-École Polytechnique, Chemin de la Hunière, 91761 Palaiseau, France.

Physical Review Letters
|October 15, 2013
PubMed
Summary
This summary is machine-generated.

Researchers identified a source of angular momentum growth in laser-plasma accelerators, showing it changes during electron beam acceleration. This study sheds light on electron beam properties beyond emittance.

More Related Videos

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments
06:40

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments

Published on: January 28, 2021

3.9K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

9.5K

Related Experiment Videos

Last Updated: May 7, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
11:20

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

Published on: July 2, 2012

16.9K
Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments
06:40

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments

Published on: January 28, 2021

3.9K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

9.5K

Area of Science:

  • Plasma Physics
  • Particle Accelerators
  • Beam Dynamics

Background:

  • Electron beams are characterized by emittance and angular momentum.
  • Emittance is well-studied in laser-plasma accelerators, but angular momentum is not.
  • Previous studies confirmed electrons carry angular momentum, but its origin was unclear.

Purpose of the Study:

  • To identify a source of angular momentum growth in laser-plasma accelerators.
  • To investigate the evolution of angular momentum during electron acceleration.

Main Methods:

  • Experimental investigation of electron beams in a laser-plasma accelerator.
  • Analysis of transverse electron beam properties, focusing on angular momentum.

Main Results:

  • One specific source contributing to angular momentum growth was identified.
  • Experimental data demonstrated that angular momentum content changes during the acceleration process.

Conclusions:

  • The study elucidates a key factor influencing angular momentum in laser-plasma accelerated electron beams.
  • Understanding angular momentum evolution is crucial for controlling nonplanar electron trajectories and advancing accelerator technology.