Constellation of phase singularities in a specklelike pattern for optical vortex metrology applied to biological kinematic analysis

Wei Wang, Yu Qiao, Reika Ishijima, Tomoaki Yokozeki, Daigo Honda, Akihiro Matsuda, Steen G. Hanson, Mitsuo Takeda

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A novel technique for biological kinematic analysis is proposed that makes use of the pseudophase singularities in a complex signal generated from a speckle-like pattern. In addition to the information about the locations and the anisotropic core structures of the pseudophase singularities, we also detect the spatial structures of a cluster of phase singularities, which serves as a unique constellation characterizing the mutual position relation between the individual pseudophase singularities. Experimental results of in vivo measurements for a swimming fish along with its kinematic analysis are presented, which demonstrate the validity of the proposed technique. © 2008 Optical Society of America.

Original languageEnglish
Pages (from-to)13908-13917
Number of pages10
JournalOptics Express
Volume16
Issue number18
DOIs
Publication statusPublished - 1 Sep 2008

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