Recent advances in subwavelength metamaterial silicon photonics

Subwavelength grating metamaterial waveguide structures are becoming established as important building blocks for silicon photonic integrated circuits. The novel optical properties found in these structures and ability to control their optical responses with unprecedented accuracy are opening new prospects for controlling flow of light in nanophotonic waveguides circuits. In this invited talk we will present an overview of our recent advances in this exciting field, including silicon-based subwavelength structures for highly efficient fiber-chip couplers, ultrabroadband waveguide devices, Bragg filters with high spectral sensitivity and nanophotonic waveguides with engineered anisotropy.