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Juggling with Light

Journal article
Authors A. J. Bae
Dag Hanstorp
Kelken Chang
Published in Physical Review Letters
Volume 122
Issue 4
Pages 043902
ISSN 0031-9007
Publication year 2019
Published at Department of Physics (GU)
Pages 043902
Language en
Keywords optical levitation, acceleration, beam, trap, size, Physics
Subject categories Physical Sciences


We discovered that when a pair of small particles is optically levitated, the particles execute a "dance" whose motion resembles the orbits of balls being juggled. This motion lies in a plane perpendicular to the polarization of the incident light. We ascribe the dance to a mechanism by which the dominant force on each particle cyclically alternates between radiation pressure and gravity as each particle takes turns eclipsing the other. We explain the plane of motion by considering the anisotropic scattering of polarized light at a curved interface.

Page Manager: Webmaster|Last update: 9/11/2012

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