Light served with a twist - to unsuspecting atoms
Dr Sonja Franke-Arnold (University of Glasgow)
Frank lecture theatre
Since (at least) a quarter of a century researchers are fascinated by twisted light, i.e. light that carries orbital angular momentum. I am one of them!
At Glasgow we routinely use a variety of techniques to imprint structure in the spatial amplitude, phase and polarisation of a light beam. In my team we specialise on the interaction of structured light with (rubidium) atoms: from cold ones at tens of Microkelvin to atomic gasses at room temperature and above. I will talk about three of our experiments: (1) how to visualise 3D optical structures from scattering off a room temperature vapour cell, (2) the conversion of twisted light from the near infrared to blue based on four wave mixing in a warm vapour cell and (3) imprinting of optical phase and polarisation information into ground state coherences of cold atoms.
For further information, contact Molly Hackett at email@example.com