Dr. Angela L. Dudley Profile

Dr. Angela L. Dudley

Researcher at Univ of the Witwatersrand, Johannesburg

SPIE Involvement:

Conference Program Committee | Editor | Author | Leadership Workshop Facilitator | Special Event Speaker

Publications (36)

Proceedings Article | 6 October 2023 Presentation

Sensing via digital Stokes polarimetry and transport-of-intensity

Angela Dudley, Keshaan Singh, Andrew Forbes

Proceedings Volume 12686, 126860I (2023) https://doi.org/10.1117/12.2682044

KEYWORDS: Polarimetry, Polarization, Wavefronts, Digital micromirror devices, Wave propagation, Polarization gratings, Phase reconstruction, Optical signal processing, Micromirrors, LCDs

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Proceedings Article | 26 September 2023 Presentation

Manipulating broadband light using a digital micromirror device

Leerin Michaela Perumal, Andrew Forbes, Angela Dudley

Proceedings Volume 12667, 1266709 (2023) https://doi.org/10.1117/12.2676695

KEYWORDS: Digital micromirror devices, Wavefronts, Spatial light modulators, Modulation, Precision optics, Polarization, Phase modulation, Optical gratings, Optical components, Optical communications

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Proceedings Article | 3 October 2022 Presentation

Controlling spatial and polarization structures with digital micromirror devices (Conference Presentation)

Angela Dudley

Proceedings Volume PC12218, PC1221803 (2022) https://doi.org/10.1117/12.2637899

KEYWORDS: Polarization, Digital micromirror devices, Superposition, Structured light, Computer programming, Bessel beams

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Proceedings Article | 1 April 2022 Presentation

Exotic polarisation control with digital micromirror devices

Angela Dudley

Proceedings Volume PC11987, PC119870I (2022) https://doi.org/10.1117/12.2606258

KEYWORDS: Polarization, Digital micromirror devices, Polarization control, Superposition, Structured light, Polarimetry, Bessel beams

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Proceedings Article | 9 March 2022 Presentation

The creation and control of structured light with digital micro-mirror devices

Andrew Forbes, Angela Dudley

Proceedings Volume PC12014, PC1201408 (2022) https://doi.org/10.1117/12.2611463

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Proceedings Article | 6 March 2021 Presentation

Getting to grips with spatial light modulators

Angela Louise Dudley

Proceedings Volume 11701, 1170104 (2021) https://doi.org/10.1117/12.2588782

KEYWORDS: Spatial light modulators, Digital holography, Structured light, Phase shift keying, Modulation, Liquid crystal on silicon, Holograms, Calibration

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Proceedings Article | 5 March 2021 Presentation

Digitally controlling polarisation structures

Keshaan Singh, Wagner Tavares Buono, Andrew Forbes, Angela Dudley

Proceedings Volume 11701, 117010M (2021) https://doi.org/10.1117/12.2582595

KEYWORDS: Polarization, Superposition, Polarimetry, Bessel beams

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Proceedings Article | 20 August 2020 Presentation + Paper

Polarization reconstruction with a digital micro-mirror device

K. Singh, I. Nape, A. Manthalkar, N. Tabebordbar, C. Rosales-Guzmán, S. Bhattacharya, A. Forbes, A. Dudley

Proceedings Volume 11486, 1148609 (2020) https://doi.org/10.1117/12.2571060

KEYWORDS: Polarization, Digital micromirror devices, Polarimetry, Polarizers, Diffraction gratings

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Proceedings Article | 14 September 2018 Paper

Free-space communication with spatial modes of light

Lucas Gailele, Angela Dudley, Andrew Forbes

Proceedings Volume 10744, 1074414 (2018) https://doi.org/10.1117/12.2505725

KEYWORDS: Optical turbulence, Spatial light modulators, Atmospheric modeling, Multiplexing, Polarization, Atmospheric propagation, Free space optics

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Proceedings Article | 30 August 2017 Presentation + Paper

Towards non-classical walks with bright laser pulses

B. Sephton, A. Dudley, A. Forbes

Proceedings Volume 10409, 104090R (2017) https://doi.org/10.1117/12.2274238

KEYWORDS: Quantum computing, Computing systems, Photons, Polarization, Quantum mechanics, Physics, Classical physics

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Proceedings Article | 25 August 2017 Paper

Radial modes in phase-only twisted light beams

B. Sephton, A. Dudley, A. Forbes

Proceedings Volume 10347, 103472U (2017) https://doi.org/10.1117/12.2274280

KEYWORDS: Modulation, Gaussian beams, Beam shaping, Phase modulation

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Proceedings Article | 21 April 2017 Presentation

Unveiling the radial modes in vortex beams (Conference Presentation)

Prince Mredlana, Darryl Naidoo, Cosmas Mafusire, Angela Dudley, Tjaart Krüger, Andrew Forbes

Proceedings Volume 10090, 100901P (2017) https://doi.org/10.1117/12.2252000

KEYWORDS: Spiral phase plates, Coherence (optics), Wavefronts, Interferometers, Scientific research, Laser resonators, Current controlled current source, Optical components, Beam controllers, Microresonators

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Proceedings Article | 27 February 2017 Presentation + Paper

Exploiting the spatial profiles of light

A. Dudley, C. Rosales-Guzmán, A. Trichilli, A. Forbes

Proceedings Volume 10120, 101200P (2017) https://doi.org/10.1117/12.2254753

KEYWORDS: Digital holography, Holograms, Holography, Multiplexing, LCDs, Wavefronts, Computer programming, Spatial light modulators, Optical communications, RGB color model, Wavelength division multiplexing

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Proceedings Article | 20 February 2017 Presentation + Paper

Multiplexing of spatial modes in the mid-IR region

Lucas Gailele, Loyiso Maweza, Angela Dudley, Bienvenu Ndagano, Carmelo Rosales-Guzman, Andrew Forbes

Proceedings Volume 10090, 100900Z (2017) https://doi.org/10.1117/12.2256085

KEYWORDS: Multiplexing, Mid-IR, Data communications, Optical communications, Beam shaping, Optical multiplexing, Spatial light modulators, Holograms, Digital holography, Atmospheric particles, Atmospheric optics

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Proceedings Article | 3 February 2017 Paper

Characterising laser beams with liquid crystal displays

Angela Dudley, Darryl Naidoo, Andrew Forbes

Proceedings Volume 10036, 100360W (2017) https://doi.org/10.1117/12.2244258

KEYWORDS: LCDs, Wavefronts, Sensors, CCD image sensors, Charge-coupled devices, Spatial light modulators, Spiral phase plates, Holograms, Multiplexing, Optical communications

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Proceedings Article | 27 September 2016 Presentation + Paper

Optical communications beyond orbital angular momentum

Carmelo Rosales-Guzmán, Abderrahmen Trichili, Angela Dudley, Bienvenu Ndagano, Amine Ben Salem, Mourad Zghal, Andrew Forbes

Proceedings Volume 9950, 99500C (2016) https://doi.org/10.1117/12.2238416

KEYWORDS: Optical communications, Free space, Telecommunications, Signal detection, Computer programming, Multiplexing, Holograms, Spatial light modulators, RGB color model, Digital holography

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Proceedings Article | 31 August 2015 Paper

Angular accelerating white light

Angela Dudley, Christian Vetter, Alexander Szameit, Andrew Forbes

Proceedings Volume 9581, 958104 (2015) https://doi.org/10.1117/12.2187377

KEYWORDS: Spatial light modulators, Spiral phase plates, Wave propagation, Superposition, Bessel beams, Light wave propagation, Free space optics, Beam shaping, Diffraction, Modulation

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Proceedings Article | 25 August 2015 Paper

Encoding information using Laguerre Gaussian modes

Abderrahmen Trichili, Angela Dudley, Amine Ben Salem, Bienvenu Ndagano, Mourad Zghal, Andrew Forbes

Proceedings Volume 9581, 95810F (2015) https://doi.org/10.1117/12.2189814

KEYWORDS: Computer programming, Free space, Digital holography, Holograms, RGB color model, Receivers, Multiplexing, Spatial light modulators, Free space optics, Signal detection

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Proceedings Article | 2 October 2014 Paper

Laguerre Gaussian beam multiplexing through turbulence

Abderrahmen Trichili, Thandeka Mhlanga, Darryl Naidoo, Angela Dudley, Mourad Zghal, Andrew Forbes

Proceedings Volume 9194, 91941A (2014) https://doi.org/10.1117/12.2062217

KEYWORDS: Multiplexing, Turbulence, Digital holography, Atmospheric turbulence, Holograms, Electroluminescent displays, Gaussian beams, Optical communications, Superposition, CCD cameras

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Proceedings Article | 2 October 2014 Paper

Digital holograms for laser mode multiplexing

Thandeka Mhlanga, Abderrahmen Trichili, Angela Dudley, Darryl Naidoo, Mourad Zghal, Andrew Forbes

Proceedings Volume 9194, 91941B (2014) https://doi.org/10.1117/12.2062999

KEYWORDS: Holograms, Digital holography, Multiplexing, Wavefronts, Spatial light modulators, Modes of laser operation, Optical communications, Data transmission, Single mode fibers, Signal detection

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Proceedings Article | 25 September 2014 Paper

Techniques to measure complex-plane fields

Angela Dudley, Nombuso Majola, Naven Chetty, Andrew Forbes

Proceedings Volume 9194, 919416 (2014) https://doi.org/10.1117/12.2060409

KEYWORDS: Superposition, Spatial light modulators, Holograms, Polarimetry, Gaussian beams, Spiral phase plates, Optical vortices, Wavefronts, Computer generated holography, Polarizers

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Proceedings Article | 25 September 2014 Paper

Wavefront sensing with all-digital Stokes measurements

Angela Dudley, Giovanni Milione, Robert Alfano, Andrew Forbes

Proceedings Volume 9194, 91940C (2014) https://doi.org/10.1117/12.2060568

KEYWORDS: Wavefronts, Spiral phase plates, Wave propagation, Polarization, LCDs, Spatial light modulators, Wavefront sensors, Phase measurement, Sensors, Polarimetry

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Proceedings Article | 22 August 2014 Paper

Digitally controlling the 'twist' of light

A. Dudley, A. Forbes

Proceedings Volume 9286, 92864S (2014) https://doi.org/10.1117/12.2063073

KEYWORDS: Digital holography, Holograms, Bessel beams, Spatial light modulators, LCDs, Superposition, Spiral phase plates, Digital filtering, Quantum information processing, Objectives

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Proceedings Article | 25 February 2014 Paper

Encoding mutually unbiased bases in orbital angular momentum for quantum key distribution

A. Dudley, M. Mafu, S. Goyal, D. Giovannini, M. McLaren, T. Konrad, M. Padgett, F. Petruccione, N. Lütkenhaus, A. Forbes

Proceedings Volume 8999, 89991I (2014) https://doi.org/10.1117/12.2038362

KEYWORDS: Spatial light modulators, Quantum key distribution, Computer programming, Image filtering, Superposition, Crystals, Physics, Information security, Laser crystals, Charge-coupled devices

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Proceedings Article | 25 February 2014 Paper

Generating and measuring non-diffracting vector Bessel beams

A. Dudley, Y. Li, T. Mhlanga, M. Escuti, A. Forbes

Proceedings Volume 8999, 89990K (2014) https://doi.org/10.1117/12.2038372

KEYWORDS: Polarization, Bessel beams, Spatial light modulators, Superposition, Polarizers, Telecommunications, Optical spheres, Laser development, LCDs, Atmospheric turbulence

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Proceedings Article | 28 September 2013 Paper

The effect of spatial light modulator (SLM) dependent dispersion on spatial beam shaping

Dirk-Mathys Spangenberg, Angela Dudley, Pieter Neethling, Andrew Forbes, Erich Rohwer

Proceedings Volume 8843, 884308 (2013) https://doi.org/10.1117/12.2023286

KEYWORDS: Spatial light modulators, Phase shifts, Modulation, Calibration, Phase measurement, Refractive index, Beam shaping, Fourier transforms, Wavefronts, Crystals

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Proceedings Article | 28 September 2013 Paper

Techniques to sort Bessel beams

Angela Dudley, Thandeka Mhlanga, André McDonald, Filippus Roux, Martin Lavery, Miles Padgett, Andrew Forbes

Proceedings Volume 8843, 884306 (2013) https://doi.org/10.1117/12.2026943

KEYWORDS: Bessel beams, Optical components, Cylindrical lenses, Spatial light modulators, Holograms, Superposition, Fourier transforms, Spherical lenses, Digital holography, Stereolithography

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Proceedings Article | 28 September 2013 Paper

Generating and analyzing non-diffracting vector vortex beams

Yanming Li, Angela Dudley, Thandeka Mhlanga, Michael Escuti, Andrew Forbes

Proceedings Volume 8843, 884305 (2013) https://doi.org/10.1117/12.2027249

KEYWORDS: Polarization, Bessel beams, Spatial light modulators, Electroluminescent displays, Beam analyzers, Polarizers, Spiral phase plates, Superposition, Optical spheres, Optical components

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Proceedings Article | 12 September 2013 Paper

Quantitatively measuring the orbital angular momentum density of light

Angela Dudley, Christian Schulze, Igor Litvin, Michael Duparré, Andrew Forbes

Proceedings Volume 8810, 88100E (2013) https://doi.org/10.1117/12.2026929

KEYWORDS: Superposition, Bessel beams, Spatial light modulators, CCD cameras, Particles, Holograms, Optical filters, Near field optics, Digital holography, Optical trapping

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Proceedings Article | 5 March 2013 Paper

Modal decomposition for measuring the orbital angular momentum density of light

Christian Schulze, Daniel Flamm, Angela Dudley, Andrew Forbes, Michael Duparré

Proceedings Volume 8637, 863719 (2013) https://doi.org/10.1117/12.2004263

KEYWORDS: Electroluminescent displays, Phase measurement, Computer generated holography, Spatial light modulators, Holograms, Polarization, Polarizers, Superposition, CCD cameras, Beam splitters

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Proceedings Article | 5 March 2013 Paper

Complete azimuthal decomposition of optical fields

A. Dudley, I. Litvin, F. Roux, A. Forbes

Proceedings Volume 8637, 86370D (2013) https://doi.org/10.1117/12.2004252

KEYWORDS: Phase shifts, Phase measurement, Superposition, Digital holography, Spatial light modulators, Holograms, Bessel beams, LCDs, Modes of laser operation, Laser sources

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Proceedings Article | 5 March 2013 Paper

Efficient sorting of Bessel beams

T. Mhlanga, A. Dudley, A. McDonald, F. Roux, M. Lavery, M. Padgett, A. Forbes

Proceedings Volume 8637, 86371C (2013) https://doi.org/10.1117/12.2004305

KEYWORDS: Bessel beams, Optical components, Cylindrical lenses, Fourier transforms, Spherical lenses, Spatial light modulators, Holograms, Charge-coupled devices, Sensors, Stereolithography

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Proceedings Article | 22 February 2013 Paper

Unraveling light with digital holograms

A. Forbes, C. Schulze, S. Ngcobo, D. Flamm, D. Naidoo, A. Dudley, M. Duparre

Proceedings Volume 8600, 86000U (2013) https://doi.org/10.1117/12.2010842

KEYWORDS: Digital holography, Holograms, Wavefronts, Superposition, Computer generated holography, Optical fibers, Spatial light modulators, Wavefront sensors, Semiconductor lasers, Structured light

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Proceedings Article | 17 October 2012 Paper

Putting light in a spin

A. Dudley, R. Rop, I. Litvin, C. López-Mariscal, F. Roux, A. Forbes

Proceedings Volume 8490, 84900A (2012) https://doi.org/10.1117/12.970682

KEYWORDS: Bessel beams, Digital holography, Superposition, Holograms, Spatial light modulators, Wave propagation, Physics, Modes of laser operation, Solids, Light wave propagation

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Proceedings Article | 11 February 2012 Paper

Measuring the orbital angular momentum density for a superposition of Bessel beams

A. Dudley, I. Litvin, A. Forbes

Proceedings Volume 8274, 827406 (2012) https://doi.org/10.1117/12.910779

KEYWORDS: Superposition, Bessel beams, LCDs, Digital holography, Spatial light modulators, Holograms, Optical testing, CCD cameras, Lithium, Mirrors

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Proceedings Article | 24 August 2009 Paper

Superpositions of higher-order Bessel beams and nondiffracting speckle fields

Angela Dudley, Ruslan Vasilyeu, Andrew Forbes, Nikolai Khilo, Petr Ropot, Vladimir Belyi, Nikolai Kazak

Proceedings Volume 7430, 74300A (2009) https://doi.org/10.1117/12.826884

KEYWORDS: Bessel beams, Superposition, Speckle, Spatial light modulators, Computer generated holography, Distance measurement, LCDs, Holograms, Wave propagation, Physics

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