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

Motion Of A Charged Particle In A Magnetic Field01:22

Motion Of A Charged Particle In A Magnetic Field

A charged particle experiences a force when moving through a magnetic field. Consider the field to be uniform and the charged particle to move perpendicular to it. If the field is in a vacuum, the magnetic field is the dominant factor determining the motion. Since the magnetic force is perpendicular to the direction of motion, a charged particle follows a curved path. The particle continues to follow this curved path until it forms a complete circle. Another way to look at this is that the...
First Law: Particles in Two-dimensional Equilibrium01:18

First Law: Particles in Two-dimensional Equilibrium

Recall that a particle in equilibrium is one for which the external forces are balanced. Static equilibrium involves objects at rest, and dynamic equilibrium involves objects in motion without acceleration; but it is important to remember that these conditions are relative. For instance, an object may be at rest when viewed from one frame of reference, but that same object would appear to be in motion when viewed by someone moving at a constant velocity.
Newton's first law tells us about the...
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
Equilibrium Conditions for a Particle01:23

Equilibrium Conditions for a Particle

When an object is in equilibrium, it is either at rest or moving with a constant velocity. There are two types of equilibrium: static and dynamic. Static equilibrium occurs when an object is at rest, while dynamic equilibrium occurs when an object is moving with a constant velocity. In both cases, there must be a balance of forces acting on the object.
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...

You might also read

Related Articles

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

Sort by
Same author

Sub-Rayleigh optical vortex coronagraphy.

Optics express·2012
Same author

Self-calibrating quantum efficiency measurement technique and application to Pr(3+)-doped sulfide glass.

Optics letters·2009
Same author

Self-bending of light: comment.

Optics letters·2009
Same author

Optical vortex solitons and the stability of dark soliton stripes.

Optics letters·2009
Same author

Dark-soliton prototype devices: analysis by using direct-scattering theory.

Optics letters·2009
Same author

Spectral measurement of the nonlinear refractive index in ZnSe using self-bending of a pulsed laser beam.

Optics letters·2009
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

Optical Trapping of Nanoparticles
13:39

Optical Trapping of Nanoparticles

Published on: January 15, 2013

Optical vortex trapping of particles.

K T Gahagan, G A Swartzlander

    Optics Letters
    |October 31, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Researchers achieved 3D particle trapping using a single dark optical vortex laser beam. This method successfully manipulated both low-index and high-index particles, forming ring patterns with the latter.

    More Related Videos

    Optical Trap Loading of Dielectric Microparticles In Air
    08:57

    Optical Trap Loading of Dielectric Microparticles In Air

    Published on: February 5, 2017

    Related Experiment Videos

    Last Updated: Jun 19, 2026

    Optical Trapping of Nanoparticles
    13:39

    Optical Trapping of Nanoparticles

    Published on: January 15, 2013

    Optical Trap Loading of Dielectric Microparticles In Air
    08:57

    Optical Trap Loading of Dielectric Microparticles In Air

    Published on: February 5, 2017

    Area of Science:

    • Optics and Photonics
    • Optical Tweezers
    • Particle Manipulation

    Background:

    • Optical tweezers are crucial for manipulating microscopic particles.
    • Dark optical vortex beams offer unique properties for particle trapping.

    Purpose of the Study:

    • To demonstrate three-dimensional trapping of low-index particles using a single dark optical vortex laser beam.
    • To explore the trapping capabilities of dark optical vortex beams for both low- and high-index particles.

    Main Methods:

    • Utilizing a single, strongly focused, stationary dark optical vortex laser beam.
    • Employing holographic generation of the vortex beam, similar to a TEM(01)* mode.
    • Trapping 20-microm-diameter hollow glass spheres in water as low-index particles.

    Main Results:

    • Successful three-dimensional trapping of low-index particles was achieved.
    • The dark optical vortex beam also trapped high-index particles.
    • Ring patterns were formed using high-index particles.

    Conclusions:

    • A single dark optical vortex laser beam is effective for 3D particle manipulation.
    • This technique offers versatility in trapping different types of particles.
    • The ability to form particle rings has potential applications in micro-assembly.