Author:Gailele, Lucas M; Dudley, Angela L; Ndagano, B; McLaren M, M; Rosales, C; Forbes, ADate:Jul 2016The orbital angular momentum (OAM) of light has become the focus of intensive research. Traditional optical communication systems optimize multiplexing in the polarization and the wavelength of light to attain an increase in bandwith. However ...Read more
Author:Duvenhage, B; Bouatouch, K; Kourie, DGDate:Sep 2014This paper describes a new extension to light beam tracing that includes glossy multi-bounce transport paths for more realistic rendering of caustics. A spherical Gaussian approximation of the glossy scatter distribution as well as Gauss' ...Read more
Author:Sephton, Bereneice C; Dudley, Angela L; Forbes, ADate:Oct 2016Light beams that carry orbital angular momentum are often approximated by modulating an initial beam, usually Gaussian, with an azimuthal phase variation to create a vortex beam. Such vortex beams are well defined azimuthally, but the radial ...Read more
Author:Lavery, MPJ; Dudley, Angela L; Forbes, A; Courtial, J; Padgett, MJDate:Sep 2011The authors have developed an interferometer requiring only minimal angular alignment for the routing of beams carrying orbital angular momentum. The Mach–Zehnder interferometer contains a Dove prism in each arm where each has a mirror plane ...Read more
Author:Forbes, A; Dudley, Angela L; Roux, SDate:Dec 2010Research at the Mathematical Optics Group uses "twisted" light to study new quatum-based information security systems. In order to understand the structure of "twisted" light, it is useful to start with an ordinary light beam with zero twist, ...Read more