Optical Review

, Volume 22, Issue 1, pp 162–165 | Cite as

Creating and probing of a perfect vortex in situ with an optically trapped particle

  • Mingzhou Chen
  • Michael Mazilu
  • Yoshihiko Arita
  • Ewan M. Wright
  • Kishan Dholakia
Special Section: Short Note 1st Optical Manipulation Conference (OMC’14), Yokohama, Japan
Part of the following topical collections:
  1. 1st Optical Manipulation Conference (OMC’14), Yokohama, Japan

Abstract

We experimentally create a ‘perfect’ vortex beam, which has a uniform ring profile and fixed radius. In contrast with other vortex fields, the intensity profile is independent of its topological charge. We then correct this field in situ using a single trapped particle as a probe. This results in a constant angular velocity for the particle regardless of its position on the beam circumference.

Keywords

Optical vortices Optical manipulation Optical tweezers 

Notes

Acknowledgments

The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.

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Copyright information

© The Optical Society of Japan 2015

Authors and Affiliations

  • Mingzhou Chen
    • 1
  • Michael Mazilu
    • 1
  • Yoshihiko Arita
    • 1
  • Ewan M. Wright
    • 1
    • 2
  • Kishan Dholakia
    • 1
    • 2
  1. 1.SUPA, School of Physics & AstronomyUniversity of St AndrewsSt AndrewsUK
  2. 2.College of Optical SciencesThe University of ArizonaTusconUSA

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