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

Deflection of a Beam01:19

Deflection of a Beam

684
Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation.
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
684
Angular Momentum about an Arbitrary Axis01:11

Angular Momentum about an Arbitrary Axis

434
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...
434
Conservation of Angular Momentum: Application01:18

Conservation of Angular Momentum: Application

12.2K
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...
12.2K
Beams with Symmetric Loadings01:15

Beams with Symmetric Loadings

385
The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
The M/EI...
385
Angular Momentum01:21

Angular Momentum

756
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...
756
Conservation of Angular Momentum01:09

Conservation of Angular Momentum

15.9K
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...
15.9K

You might also read

Related Articles

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

Sort by
Same author

Multispectral extended depth-of-field fluorescence microscopy with co-designed meta-optics and neural reconstruction.

Light, science & applications·2026
Same author

Disorder-Engineered Hybrid Plasmonic Cavities for Emission Control of Defects in hBN.

ACS photonics·2026
Same author

Double-phase metasurface operators for all-optical image processing.

Light, science & applications·2026
Same author

Safety analysis for a distributed coupled-cavity laser-based wireless power transfer.

Optics express·2025
Same author

235 nm and 255 nm light-emitting diode based Gbps optical wireless communications up to 30 meters.

Optics express·2025
Same author

A comprehensive comparison between Terahertz and optical wireless communications.

NPJ wireless technology·2025
Same journal

Long-term stabilization of intensity-difference squeezing from four-wave mixing in rubidium vapor.

Optics express·2026
Same journal

Robust 3D topography measurement of large-range high-aspect-ratio structures based on dual-domain statistical filtering in SD-OCT.

Optics express·2026
Same journal

Broadband transmissive terahertz metasurface for simultaneous quad-mode OAM multiplexing.

Optics express·2026
Same journal

Leveraging two-dimensional materials for high-sensitivity optical sensors: quasi-bound states in the continuum within hybrid metasurfaces.

Optics express·2026
Same journal

Resolution investigation for dual-spherical-wave optical scanning holographic microscopy: methods and performance.

Optics express·2026
Same journal

Robustness of parallel subnetwork-filtered diffractive deep neural networks.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Jan 17, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
12:14

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

22.4K

Paraxial orbital angular momentum beam under misaligned detection.

Arttu Nieminen, Rizwana Ahmad, Harald Haas

    Optics Express
    |September 23, 2025
    PubMed
    Summary
    This summary is machine-generated.

    This study models orbital angular momentum (OAM) in Laguerre-Gaussian (LG) beams. Misalignment effects like tilt and displacement create OAM sidebands, with beam properties influencing spectral broadening and crosstalk reduction.

    More Related Videos

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

    Published on: October 11, 2016

    10.1K
    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    10.1K

    Related Experiment Videos

    Last Updated: Jan 17, 2026

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
    12:14

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

    Published on: August 12, 2013

    22.4K
    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

    Published on: October 11, 2016

    10.1K
    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    10.1K

    Area of Science:

    • Optical physics
    • Quantum optics
    • Beam propagation

    Background:

    • Laguerre-Gaussian (LG) beams carry orbital angular momentum (OAM).
    • Beam misalignment, including tilt and lateral displacement, can distort the OAM spectrum.
    • Understanding these distortions is crucial for OAM-based applications.

    Purpose of the Study:

    • To develop an analytical framework for modeling OAM spectra of LG beams under misalignment.
    • To investigate the impact of tilt and lateral displacement on OAM sidebands.
    • To explore methods for mitigating crosstalk caused by misalignment.

    Main Methods:

    • Analytical modeling of OAM spectrum detection.
    • Mathematical formulation of misalignment effects (tilt and lateral displacement).
    • Analysis of dimensionless parameters governing OAM sideband generation.

    Main Results:

    • Both tilt and lateral displacement generate OAM sidebands with a similar functional form.
    • A dimensionless parameter, dependent on beam size and wavelength, characterizes these sidebands.
    • Increasing the topological charge (azimuthal index) broadens the OAM spectrum.
    • Perpendicular orientation of tilt and displacement leads to destructive interference, reducing crosstalk.

    Conclusions:

    • The developed framework accurately models OAM spectrum distortions due to misalignment.
    • Topological charge significantly influences spectral broadening.
    • Destructive interference offers a method to control and reduce crosstalk in misaligned OAM beams.