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Generalized approach to modifying optical vortices with suppressed sidelobes using Bessel-like functions

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Abstract

We propose a generalized approach to producing optical vortices with suppressed sidelobes using a variable Bessel-like function added to the conventional spiral phase plate. Experimental verifications are implemented by a phase-only spatial light modulator. It is demonstrated that the method is valid for optical vortex beams with arbitrary topological charges and without changing the primary ring size as a unique property among the existing techniques.

© 2009 Optical Society of America

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