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Publisher's URL: http://dx.doi.org/10.1364/OL.24.000430
The polarization state of a light beam is related ta its spin angular momentum and can be represented on the Poincare sphere. We propose a sphere for light beams in analogous orbital angular momentum states. Using the Poincare-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.
|Glasgow Author(s) Enlighten ID:||Courtial, Dr Johannes and Padgett, Professor Miles|
|Authors:||Padgett, M.J., and Courtial, J.|
|College/School:||College of Science and Engineering > School of Physics and Astronomy|
|Journal Name:||Optics Letters|
|Publisher:||Optical Society of America|
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