Before coming to Cambridge, I was a postdoctoral fellow/group leader in the Photonic Crystal Fibre Science division of Prof. Philip Russell at the Max-Planck Institute for the Science of Light in Erlangen, Germany. Before that, I did my PhD research on “Ultrafast optical switching of photonic crystals”, supervised by Prof. Willem Vos at the University of Twente and the FOM Institute for Atomic and Molecular Physics (AMOLF) in the Netherlands.