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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 2 — Jan. 23, 2006
  • pp: 535–541

Residue orbital angular momentum in interferenced double vortex beams with unequal topological charges

S. H. Tao, X.-C. Yuan, J. Lin, and R. E. Burge  »View Author Affiliations

Optics Express, Vol. 14, Issue 2, pp. 535-541 (2006)

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When two vortex beams with unequal topological charges superpose coherently, orbital angular momentum (OAM) in the two beams would not be cancelled out completely in the interference. The residual OAMs contained by the superposed beam are located at different concentric rings and may have opposite orientations owing to the difference of the charges. The residual OAM can be confirmed by the rotation of microparticles when difference between the charges of two interfering beams is large.

© 2006 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(090.0090) Holography : Holography
(140.7010) Lasers and laser optics : Laser trapping

ToC Category:
Diffraction and Gratings

Virtual Issues
Vol. 1, Iss. 2 Virtual Journal for Biomedical Optics

S. H. Tao, X.-C. Yuan, J. Lin, and R. E. Burge, "Residue orbital angular momentum in interferenced double vortex beams with unequal topological charges," Opt. Express 14, 535-541 (2006)

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