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Related Experiment Video

Updated: Apr 15, 2026

Optical Trap Loading of Dielectric Microparticles In Air

Optical Trap Loading of Dielectric Microparticles In Air

Published on: February 5, 2017

Actio et reactio in optical binding.

Sergey Sukhov, Alexander Shalin, David Haefner

|April 4, 2015

Summary

This summary is machine-generated.

Optical binding of asymmetric particles in out-of-equilibrium systems leads to non-reciprocal interactions. This results in a non-conservative force on the dimer

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Optical Trapping of Nanoparticles

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Published on: January 15, 2013

Area of Science:

Physics, specifically condensed matter physics and optical phenomena.
Interdisciplinary research bridging optics, materials science, and statistical mechanics.

Background:

Symmetry principles like action-reaction typically govern interactions between particulate matter.
Out-of-equilibrium environments can disrupt these fundamental symmetries.
Conservation of canonical momentum persists even when action-reaction symmetry is broken.

Purpose of the Study:

To investigate the breakdown of action-reaction symmetry in optically bound asymmetric systems.
To demonstrate non-reciprocal interactions and resultant forces in such systems.
To explore the influence of phase transitions on these optical forces.

Main Methods:

Theoretical modeling of optically bound dimers composed of dissimilar particles.
Analysis of interactions within an out-of-equilibrium environment.
Investigation of forces acting on the center of mass of the dimer.

Main Results:

Optical binding in asymmetric systems leads to non-reciprocal interactions.
A non-conservative force is exerted on the center of mass of an optically bound dimer.
This force exhibits unexpected transversal action, dependent on phase transitions.

Conclusions:

Action-reaction symmetry is not universally conserved in out-of-equilibrium optical interactions.
Asymmetric optical binding can induce novel non-reciprocal forces and motion.
Phase transitions in material properties critically influence the behavior of optically bound systems.