Nanophotonic architectures such as photonic crystals and metamaterials have become key players in modern photonics. They offer hitherto unprecedented capabilities combined with great versatility to control various properties of light -propagation, polarization, emission and photon statistics. They have become increasingly important for chipscale photonics. In this talk, I will present research carried out along with my colleagues in this area using photonic crystals and metamaterials at Sandia. In particular, I will discuss our work on three-dimensional photonic crystals operating in the visible as well as low threshold lasing from three-nitride nanowire two-dimensional photonic crystal arrays. I will also present our recent efforts on fabrication and spectroscopy of site-selective III-nitride quantum dots for single photon sources using photo-electro-chemical etch. Time permitting I will also briefly discuss our efforts on epsilon-near-zero metamaterials at visible wavelengths as well as structures for non-resonant, broadband ultrasubwavelength light confinement structures.
Tel: 858-534-2498
email: clwills@eng.ucsd.edu