Conference Agenda

Phase-based sensing can reach a very high level of accuracy, and integrating these devices on a silicon chip can make these devices extremely compact and very affordable. In this presentation, I will report some recent results of photonic sensing on chip using phase-based measurements. In particular, I will show demonstrations of integrated wavemeters on chip at high speed using carrier-depletion-based modulation, and refractive index sensing experiments based on actively-modulated interferometers.

We report recent progress on optoelectronic devices and metasurfaces involving surface plasmons, enabled by metal-oxide-semiconductor (MOS) structures on Si and on epsilon-near-zero materials. We discuss electrically tuneable metasurfaces, high-speed electro-absorption modulators, and reflection modulators. Hot carriers created by the absorption of plasmons in metallic nanostructures on MOS structures are also discussed as they lead to novel device physics that open the door to new device concepts.

Subwavelength engineering has become established as an essential design tool in integrated photonics. The utilization of state-of-the-art semiconductor manufacturing methods to create nanostructures within optical waveguides has provided unparalleled control over the manipulation of light propagation in silicon photonic chips. In this presentation, we will present our recent breakthroughs in this rapidly advancing field. We will also introduce a nascent research area of resonant integrated photonics, leveraging Mie resonances in dielectrics for on-chip guidance of optical waves, as well as Dirac gratings and parity-time symmetric waveguide structures.