Chinese Science Bulletin

, Volume 55, Issue 35, pp 3998–4004 | Cite as

Spiral forces established by optical phase singularities

  • Xiang FangEmail author
  • ZhaoJun Ding
  • YanLi Feng
  • JianPeng Zhang
Article Optics


The spiral forces of phase singularities are demonstrated experimentally and numerically by presenting the generation and propagation dynamics of multiple optical vortices embedded in a Gaussian beam. The results reveal that the energy flow established by certain phase singularity will perform the characteristics of force on other singularities whose direction is determined by the sign of the topological charge. The force is confirmed by the fluid-like motions of multi-vortex beams, i.e. singularities undergo rotation (annihilation) with each other when they involve identical (opposite) topological charges. This force mechanism may help develop an intuitive understanding of multi-vortex motion and presents a new viewpoint from which to study the dynamics of singularities.


phase singularity optical vortex spiral force fluid-like motion 


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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Xiang Fang
    • 1
    Email author
  • ZhaoJun Ding
    • 1
  • YanLi Feng
    • 1
  • JianPeng Zhang
    • 1
  1. 1.Department of Computer Science and TechnologyShandong Institute of Business and TechnologyYantaiChina

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