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

Net Torque Calculations01:19

Net Torque Calculations

9.5K
When a mechanic tries to remove a hex nut with a wrench, it is easier if the force is applied at the farthest end of the wrench handle. The lever arm is the distance from the pivot point (the hex nut in this case) to the person’s hand. If this distance is large, the torque is higher. Only the component of the force perpendicular to the lever arm contributes to the torque. Therefore, pushing the wrench perpendicular to the lever arm is more advantageous. If multiple people apply force to...
9.5K
Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

4.2K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
4.2K
Torque Free Motion01:15

Torque Free Motion

516
The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...
516
Residual Stresses in Circular Shafts01:10

Residual Stresses in Circular Shafts

200
In materials that exhibit elastic and plastic behavior, known as elastoplastic materials, residual stresses can accumulate when these materials experience plastic deformation. This deformation arises from either high levels of shearing stress or significant strains. Residual stresses are internal stresses that persist within a material after removing the external force causing deformation. This phenomenon is demonstrated when observing the behavior of a shaft under torque; notably, the...
200
Nonlinear Pharmacokinetics: Causes of Nonlinearity01:22

Nonlinear Pharmacokinetics: Causes of Nonlinearity

245
Nonlinearity in drug pharmacokinetics is caused by various factors influencing how a drug is absorbed, distributed, metabolized, and excreted. Understanding these nonlinear processes is crucial for predicting drug behavior in the body and optimizing drug dosing regimens.
Nonlinear drug absorption can occur when the process is rate-limited by solubility, carrier-mediated transport systems, or saturation of the presystemic gut wall or hepatic metabolism. For instance, high doses of riboflavin...
245
Circular Shafts - Elastoplastic Materials01:24

Circular Shafts - Elastoplastic Materials

127
The study of solid circular shafts under stress shows that within the elastic limit, stress increases directly to the distance from the shaft's center. This relationship holds until the shaft reaches a critical point of stress, beyond which it begins to yield, marking the transition from elastic to plastic deformation. At this crucial juncture, the maximum torque the shaft can endure without permanent deformation is determined, signifying the limit of its elastic behavior.
As torque on the...
127

You might also read

Related Articles

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

Sort by
Same author

Chiral Quasi-Bound States in the Continuum on the Verge of the Light Cone.

Nano letters·2026
Same author

Bound states in the continuum in plasmonic structures.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same author

Dynamically tunable membrane metasurfaces for infrared spectroscopy and strong light-matter interactions.

Light, science & applications·2026
Same author

Mittag-Leffler expansion of the optical scattering matrix via rescaled scattering channels.

Optics letters·2026
Same author

Chiral nonlinear polaritonics with van der Waals metasurfaces.

Science advances·2026
Same author

Structured coherent thermal emission from non-Hermitian metasurfaces.

Nature communications·2026
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: Jul 25, 2025

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.5K

Nonlinearity-Induced Optical Torque.

Ivan Toftul1,2, Gleb Fedorovich2,3, Denis Kislov2,4,5

  • 1Nonlinear Physics Center, Research School of Physics, Australia National University, Canberra ACT 2601, Australia.

Physical Review Letters
|June 30, 2023
PubMed
Summary
This summary is machine-generated.

Nonabsorbing particles can now be rotated using nonlinear light scattering, enabling optical torque transfer. This breakthrough utilizes microscopic symmetry breaking and resonant states for novel particle manipulation.

More Related Videos

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

7.2K
Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
09:56

Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers

Published on: August 31, 2021

5.0K

Related Experiment Videos

Last Updated: Jul 25, 2025

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.5K
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

7.2K
Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers
09:56

Direct Force Measurements of Subcellular Mechanics in Confinement using Optical Tweezers

Published on: August 31, 2021

5.0K

Area of Science:

  • Optics and Photonics
  • Nanotechnology
  • Mechanical Engineering

Background:

  • Optical manipulation typically requires absorbing or asymmetric particles for torque transfer.
  • Spherical, nonabsorbing particles conserve angular momentum, preventing rotation from light scattering.
  • Existing methods for optical torque are limited by particle properties and light interactions.

Purpose of the Study:

  • To propose a novel mechanism for optical torque transfer to nonabsorbing particles.
  • To demonstrate angular momentum transfer via nonlinear light scattering.
  • To explore the potential of resonant dielectric nanostructures for this phenomenon.

Main Methods:

  • Investigating nonlinear light scattering phenomena.
  • Analyzing angular momentum transfer at the microscopic level.
  • Exploring the excitation of resonant states in dielectric nanostructures.
  • Theoretical modeling of optical forces and torques.

Main Results:

  • A new physical mechanism for optical torque on nonabsorbing particles is proposed.
  • Microscopic symmetry breaking via nonlinear scattering enables torque.
  • Negative optical torque is generated through resonant state excitation at harmonic frequencies.
  • The mechanism relies on the angular momentum projection of excited states.

Conclusions:

  • Nonabsorbing particles can be optically rotated using nonlinear light scattering.
  • Resonant dielectric nanostructures offer a viable platform for experimental verification.
  • This work opens new avenues for precise optical manipulation of micro- and nan objects.