SEZIONE DI FIRENZE
Recent advances in the manufacture of synthetic diamond are creating new opportunities for diamond as a material for advanced technology. Laser writing with femtosecond pulses enables 3D fabrication of a variety of components inside diamond for a range of applications. Focusing at high numerical aperture inside the diamond, with adaptive optics used for aberration correction, non-linear absorption leads to a perturbation of the diamond structure on a scale less than a micrometre, without any damage to the surrounding material or surface. Via this process it is possible to generate electrically conductive wires, optical waveguides and coherent colour centres in three dimensions inside the diamond. In this talk, I will provide some background on the fabrication and how we are using it to fabricate functional devices. I will also present our new results on structural characterisation of the laser modifications within diamond, including transmission electron microscopy (TEM) studies to reveal the internal structure of the laser written features, and optical measurements to characterise the stress fields generated. (Dr. Patrick Salter)

DATA: 11-10-2018