UChicago Physics Colloquium: Charles Clark, University of Maryland
- When:
- Thursday, November 2, 2023 3:30 pm - 4:30 pm
- Where:
- Maria Goeppert-Mayer Lecture Hall, Kersten Physics Teaching Center 106, 5720 S. Ellis Ave., Chicago, IL 60637
- Speaker:
- Charles Clark, University of Maryland
- Title:
- Orbital angular momentum of light and quantum particles
- Description:
-
It was about 50 years ago today, when "Dislocations in wave trains" came into play. Twenty years on, "Dislocations" became a '90s hit following the ingenious experiments of Soskin et al., that showed the promise of applications of "twisted" or structured light, which has non-vanishing orbital angular momentum about its propagation axis. Modern use cases for such modalities include increased communication bandwidth for 6G applications. Quantum particle beams can also be shaped by analogue tools of optics. I shall present recent results for neutrons, made possible by microfabricated synthetic holograms containing millions of forked dislocation gratings of the type envisaged by Soskin, et al.