Fringe 2005 pp 46-53

Experimental Study of Coherence Vortices: Birth and Evolution of Phase Singularities in the Spatial Coherence Function

  • Wei Wang
  • Zhihui Duan
  • Steen G. Hanson
  • Yoko Miyamoto
  • Mitsuo Takeda
Conference paper

Conclusions

In summary, we have presented evidence of coherence vortices for the first time and experimentally investigated the properties of phase singularities in the coherence function. Unlike for conventional optical vortices, the intensity for coherence vortices does not vanish, but their contrasts become zero. Furthermore, the proposed method for synthesizing coherence vortices faciliates direct observation of the detailed local properties of an coherence vortex, and introduces new opportunities to explore other topological phenomena for the coherence function.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Wei Wang
    • 1
  • Zhihui Duan
    • 1
  • Steen G. Hanson
    • 2
  • Yoko Miyamoto
    • 1
  • Mitsuo Takeda
    • 1
  1. 1.Dept. of Info. & Comm. Engg.The University of Electro-CommunicationsChofu, TokyoJapan
  2. 2.Dept. for Optics and Plasma Research, OPL-128Risoe National LaboratoryRoskildeDenmark

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