University of Birmingham > Talks@bham > Cold atoms > Swings and roundabouts: operators and rays for structured light beams

## Swings and roundabouts: operators and rays for structured light beamsAdd to your list(s) Download to your calendar using vCal - Mark Dennis (Birmingham)
- Wednesday 16 October 2019, 13:00-14:00
- Physics East 217.
If you have a question about this talk, please contact Dr Giovanni Barontini. A major theme of modern free-space optics involves structured light beams, such as Hermite-Gaussian beams from a laser cavity, Laguerre-Gaussian and Bessel beams carrying orbital angular momentum, Airy beams which appear to accelerateâ€¦ These can be described as evolving quantum wavepackets via the analogy between the Schrodinger and the paraxial wave equation. I will describe a geometric optics construction which determines each family of beams in terms of families of light rays, weighted appropriately by amplitudes and phases which emerge from a Hamiltonian analysis. Not only does this give new ingight into the standard beam families, it provides a significant generalization to all of them, allowing for continuous freedom in the design of new Gaussian, accelerating or propagation-invariant families of structured light beams. This talk is part of the Cold atoms series. ## This talk is included in these lists:Note that ex-directory lists are not shown. |
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