Structures in hot atoms
3D beam reconstruction by fluorescence imaging
We can visualise the 3D shape of light beams by mapping its fluorescence in an atomic vapour. This is a non-invasive technique, capable of obtaining the full spatial structure of a light beam at high resolution.
Read more in Optics Express 21, 22215 (2013)
We are currently exploring the visualisation of regions of darkness embedded within a bright beam profile.