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Evolution of composite off-axis vortexes embedded in the propagation-invariant beams
Study of singularities embedded in the propagation-invariant beams has opened up a niche area of research. We report the study of a single and composite off-axis vortexes embedded in the propagation-invariant beams. The influence of radial wavevector of the propagation-invariant beam (host beam) on...
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Published in: | Optics communications 2005-03, Vol.247 (1-3), p.1-9 |
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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: | Study of singularities embedded in the propagation-invariant beams has opened up a niche area of research. We report the study of a single and composite off-axis vortexes embedded in the propagation-invariant beams. The influence of radial wavevector of the propagation-invariant beam (host beam) on the evolution of an off-axis vortex to the centre of the beam (recovery distance) is reported in the paper. The recovery distance of an off-axis vortex also depends on the topological charge of the vortex and the offset distance of the vortex from the centre of the beam. Furthermore, the composite off-axis vortexes stably add their topological charges at the centre of the beam during the free-space propagation. |
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ISSN: | 0030-4018 1873-0310 |
DOI: | 10.1016/j.optcom.2004.11.030 |