During my PhD I've been working on the conical refraction phenomenon, occurring when a light beam propagates through a biaxial crystal parallel to one of the optic axes. These studies have allowed me to get involved with many differnt research areas such as singular optics, structured light, optical trapping, free-space optical communications, optical metrology, and non-linear optics. Here I just want to tell you a little about some this stuff.
- High-order harmonic generation of vector beams: both theoretical and experimental demonstration of the generation of EUV vector beams by means of HHG for the first time.
- Blue-detuned optical potentials for BECs: dipolar trapping of Bose-Einstein condensates (BECs) in macroscopic blue-detuned ring geometries and optical bottle beams.
- Photophoretic trapping of absorbing particles: experimental photophoretic trapping and levitation of macroscopic absorbing particles in a reconfigurable three-dimensional optical bottle.
- Free space optical communications: design and test of a polarization multiplexing and de-multiplexing system based on biaxial crystals with tenfold increased channel capacity.
- Conical refraction: both theoretical and experimental investigations of the phenomenon; demonstration of a theoretical formalism capable to reproduce light propagation in biaxial crystals, including crystals in cascade.