Abstract
We observe the spinning and orbital motion of a microscopic particle trapped within a multiringed light beam that arises from the transfer of the spin and orbital components of the light’s angular momentum. The two rotation rates are measured as a function of the distance between the particle and the axis of the trapping beam. The radial dependence of these observations is found to be in close agreement with the accepted theory.
- Received 20 December 2002
DOI:https://doi.org/10.1103/PhysRevLett.91.093602
©2003 American Physical Society