GENERAL ENQUIRIES: Tel: + 27 12 841 2911 | Email: callcentre@csir.co.za

Browsing by Author "Flamm, D"

Sort by: Order: Results:

  • Schulze, C; Dudley, Angela L; Flamm, D; Duparre, M; Forbes, A (IOP Publishing, 2013-07)
    We demonstrate a versatile method for the measurement of the orbital angular momentum (OAM) density of an optical field. By performing a modal decomposition with digital holograms, we reconstruct the full optical field ...
  • Schulze, C; Flamm, D; Dudley, Angela L; Forbes, A; Duparr'e, M (SPIE Digital library, 2013-02)
    We present a novel technique to measure the orbital angular momentum (OAM) density of light. The technique is based on modal decomposition, enabling the complete reconstruction of optical fields, including the reconstruction ...
  • Flamm, D; Naidoo, Darryl; Schulze, C; Forbes, A; Duparré, M (Optical Society of America, 2012-07)
    A procedure for the real-time analysis of laser modes using a phase-only spatial light modulator is outlined. The procedure involves encoding into digital holograms by complex amplitude modulation a set of orthonormal basis ...
  • Schulze, C; Dudley, Angela L; Flamm, D; Duparré, M; Forbes, A (Optical Society of America, 2013-07)
    We present the reconstruction of a laser beam wavefront from its mode spectrum and investigate in detail the impact of distinct aberrations on the mode composition. The measurement principle is presented on a Gaussian beam ...
  • Schulze, C; Dudley, Angela L; Flamm, D; Duparr, M; Forbes, A (The Optical Society of America, 2013-10)
    We present a novel tool for sorting the orbital angular momentum and to determine the orbital angular momentum density of laser beams, which is based on the use of correlation filters.
  • Forbes, A; Schulze, C; Ngcobo, S; Flamm, D; Naidoo, Darryl; Dudley, Angela L; Duparre, M (SPIE Proceedings, 2013-02)
    Modal decomposition of optical fields as a concept has been in existence for many decades, yet despite its clear applications to laser beam analysis it has nevertheless remained a seldom used tool. With the commercialization ...
  • Schulze, C; Naidoo, Darryl; Flamm, D; Schmidt, OA; Forbes, A; Duparr, M (Optical Society of America, 2012-08)
    We propose a new method to determine the wavefront of a laser beam based on modal decomposition by computer-generated holograms. The hologram is encoded with a transmission function suitable for measuring the amplitudes ...