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Structured Light with Digital Holograms

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Structured Light with Digital Holograms

Hosted By: Holography and Diffractive Optics Technical Group

29 April 2021, 10:00 - 11:00 - Eastern Daylight Time (UTC - 04:00)

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Structured light is a term used to describe optical fields that have been tailored in their spatial intensity, phase and polarisation distributions, and may even be extended to include tailored light in the time and frequency domain too. Structured light has relevance to a wide range of topics, including optical manipulation, atom optics, high-dimensional quantum information processing, laser materials processing, light-matter interactions and novel lasers, spanning both fundamental science and applications.

In this webinar hosted by the Holography and Diffractive Optics Technical Group, Andrew Forbes from the University of the Witwatersrand will explore how to create, manipulate and detect structured light fields using digital holograms. In particular Forbes will look at modern techniques using spatial light modulators (SLMs) and digital micro-mirror devices (DMDs) for the all-digital, real-time control of structured light.

What You Will Learn:

  • How to create computer generated holograms and write them as digital holograms for SLMs and DMDs
  • About structured light and its applications, touching on classical, quantum and laser applications
  • How to construct a complete all-digital toolkit for the control of spatial modes of light

Who Should Attend:

  • PhD students, researchers, and engineers who are interested in controlling the light in conexion with computer generated holograms


About the Presenter: Andrew Forbes, University of the Witwatersrand

Andrew received his PhD (1998) from the University of Natal (South Africa), and subsequently spent several years working as an applied laser physicist, first for the South African Atomic Energy Corporation and then later in a private laser company. In 2004 he joined the CSIR National Laser Centre where he was Chief Researcher and Research Group Leader of the Mathematical Optics group. In March 2015 Andrew joined the U. Witwatersrand as a Distinguished Professor and has established a new laboratory for Structured Light. Andrew chairs or serves on the committees of several international conferences, OSA and SPIE committees, and serves on the editorial boards of Optics Express, J. Optics, AVS Quantum and PhotoniX. He is active in promoting photonics and popularising science, a founding member of the Photonics Initiative of South Africa, a Fellow of both SPIE and the OSA, and an elected member of the Academy of Science of South Africa. In 2015 Andrew won a national award for his contribution to photonics in Africa, and in 2020 he was awarded the Georg Forster award from the Humboldt Foundation. He spends his time having fun with the taxpayers’ money, exploring structured light in classical and quantum optics.