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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 7 — Apr. 1, 1999
  • pp: 430–432

Poincaré-sphere equivalent for light beams containing orbital angular momentum

M. J. Padgett and J. Courtial  »View Author Affiliations


Optics Letters, Vol. 24, Issue 7, pp. 430-432 (1999)
http://dx.doi.org/10.1364/OL.24.000430


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Abstract

The polarization state of a light beam is related to its spin angular momentum and can be represented on the Poincaré sphere. We propose a sphere for light beams in analogous orbital angular momentum states. Using the Poincaré-sphere equivalent, we interpret the rotational frequency shift for light beams with orbital angular momentum [Phys. Rev. Lett. 80, 3217 (1998)] as a dynamically evolving geometric phase.

© 1999 Optical Society of America

OCIS Codes
(350.1370) Other areas of optics : Berry's phase

Citation
M. J. Padgett and J. Courtial, "Poincaré-sphere equivalent for light beams containing orbital angular momentum," Opt. Lett. 24, 430-432 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-7-430


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