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Suche nach „[S.] [Franke-Arnold]“ hat 1 Publikationen gefunden
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J. Götte, K. O'Holleran, D. Preece, Florian Flossmann, S. Franke-Arnold, S. Barnett, M. Padgett
Light beams with fractional orbital angular momentum and their vortexs tructure
Optics Express, vol. 16, no. 2, pp. 993-1006
Light emerging from a spiral phase plate with a non-integer phase step has a complicated vortex structure and is unstable on propagation. We generate light carrying fractional orbital angular momentum (OAM) not with a phase step but by a synthesis of Laguerre-Gaussian modes. By limiting the number of different Gouy phases in the superposition we produce a light beam which is well characterised in terms of its propagation. We believe that their structural stability makes these beams ideal for quantum information processes utilising fractional OAM states.