The idea of photonic crystal came to be when E. Yablonovitch and S. John recommended a
structure in 1987 having periodic alteration of refractive index in one or multiple directions …

High-index-contrast, wavelength-scale structures are key to ultracompact integration of
photonic integrated circuits. The fabrication of these nanophotonic structures in silicon-on …

New optical waveguide technology for integrated optics, based on propagation of long-
range surface plasmon polaritons (LR-SPPs) along metal stripes embedded in dielectric, is …

For the compact integration of photonic circuits, wavelength-scale structures with a high
index contrast are a key requirement. We developed a fabrication process for these …

A fast, effective process using hydrogen annealing is introduced to perform profile
transformation on silicon-on-insulator (SOI) and to reduce sidewall roughness on silicon …

We investigate the efficiency of transmission through photonic crystal Y junctions and show
the importance of matching mode symmetries. Furthermore, we show that by adding tuning …

Straight single-line-defect photonic crystal (PC) waveguides on GaAs slabs with lengths of 1,
4, and 10 mm have been fabricated. By controlling the Al content of a sacrificial AlGaAs clad …

Nano-photonic technologies of GaAs-based two-dimensional photonic crystal (2DPC) slab
waveguides (WGs) and InAs-based quantum dots (QDs) are reviewed for a symmetrical …

The concept of photonic crystal waveguides and related device applications in integrated
optics are discussed, as well as some of the fabrication technology required to realise these …

Waveguide directional couplers, formed by two closely spaced linear defect waveguides in a
two-dimensional photonic crystal of air holes in a semiconductor matrix, are numerically …