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Optical twists in phase and amplitude

Daria, Vincent; Palima, Darwin Z; Glückstad, Jesper


Light beams with helical phase profile correspond to photons having orbital angular momentum (OAM). A Laguerre-Gaussian (LG) beam is an example where its helical phase sets a phase-singularity at the optical axis and forms a ring-shaped transverse amplitude profile. Here, we describe a unique beam where both phase and amplitude express a helical profile as the beam propagates in free space. Such a beam can be accurately referred to as an optical twister. We characterize optical twisters and...[Show more]

CollectionsANU Research Publications
Date published: 2011-01-17
Type: Journal article
Source: Optics express
DOI: 10.1364/OE.19.000476
Access Rights: Open Access


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