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The vortex-beam 'precession' in a rotating uniaxial crystal
We consider theoretically and experimentally the precession of the optical vortex in a singular beam propagating nearly perpendicular to the crystal optical axis, the beam and the crystal axis rotating with different angular velocities. The precession is a result of anisotropic diffraction caused by...
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Published in: | Journal of optics (2010) 2009-09, Vol.11 (9), p.094008-094008 (8) |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We consider theoretically and experimentally the precession of the optical vortex in a singular beam propagating nearly perpendicular to the crystal optical axis, the beam and the crystal axis rotating with different angular velocities. The precession is a result of anisotropic diffraction caused by different scales along the major axes in a uniaxial crystal. Also, we analyze the properties of an optical reducer consisting of two rotating crystals and a quarter-wave retarder between them, permitting us to control the form of the vortex trajectory and the angular velocity of the vortex beam. |
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ISSN: | 1464-4258 2040-8978 1741-3567 |
DOI: | 10.1088/1464-4258/11/9/094008 |