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Proceedings Paper

Revival of the dark core in scattered optical vortices
Author(s): Salla Gangi Reddy; Ashok Kumar; Shashi Prabhakar; R. P. Singh
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Paper Abstract

We have experimentally observed the revival of the dark core in the far field intensity distribution in optical vor­ tices after scattering through rotating ground glass plate. The diameter and darkness of the core is independent of the speed of the rotating ground glass plate. They depend on the spot size and azimuthal index of the beam incident on it. This shows that the spatial coherence of the scattered light is independent of the speed of the rotating ground glass plate. Our experimental results are in good agreement with the numerical results based on the theory given by Wang, Cai and Korotkova (Opt. Exp. 17, 22366 (2009)).

Paper Details

Date Published: 27 September 2013
PDF: 6 pages
Proc. SPIE 8840, Optical Modeling and Performance Predictions VI, 884008 (27 September 2013); doi: 10.1117/12.2023037
Show Author Affiliations
Salla Gangi Reddy, Physical Research Lab. (India)
Ashok Kumar, Physical Research Lab. (India)
Shashi Prabhakar, Physical Research Lab. (India)
R. P. Singh, Physical Research Lab. (India)


Published in SPIE Proceedings Vol. 8840:
Optical Modeling and Performance Predictions VI
Mark A. Kahan; Marie B. Levine, Editor(s)

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