Metamaterial engineered waveguide structures are emerging as fundamental building blocks for integrated photonics. Here we present an overview of our recent advances in this field, including fiber-chip couplers, ultra-broadband beam splitters, nanophotonic waveguides with engineered anisotropy and integrated Bragg filters.
In this talk, I will discuss our recent progress in the context of non-reciprocal photonic devices based on spatio-temporal modulations and nonlinearities.
We provide the first TM-polarized subwavelength grating waveguides (SWG) in silicon-on-insulator with air top-cladding, working in mid-infrared region from 3.35mm to 3.45mm. The simulation results show about 38% electrical field overlap.
Metallic nanowires supporting surface plasmon polaritons can localize optical fields at nanoscale for near-field imaging. In this paper, we propose a photonic-plasmonic probe for nanoscale light confinement. The linearly polarized fiber mode is asymmetrically coupled to radial plasmons to create hot-spot at the tip apex.