Dragomir N. Neshev

Abstract Integrated quantum photonics has become a burgeoning field of research that encompasses quantum light sources, nonlinear materials, photonic resonators, optical interconnects and detectors. There is also a growing need for programmable devices that enable rapid reconfiguration of individual components in integrated quantum photonic chips.

Abstract Nonlinear metasurfaces have experienced rapid growth recently due to their potential in various applications, including infrared imaging and spectroscopy. However, due to the low conversion efficiencies of metasurfaces, several strategies have been adopted to enhance their performances, including employing resonances at signal or nonlinear emission wavelengths.

Abstract Switching of light polarization on the sub-picosecond timescale is a crucial functionality for applications in a variety of contexts, including telecommunications, biology and chemistry. The ability to control polarization at ultrafast speed would pave the way for the development of unprecedented free-space optical links and of novel techniques for probing dynamical processes in complex systems, as chiral molecules.