<title>Semiconductor photonic crystals and functional devices</title>

Abstract

Semiconductor three- and two-dimensional photonic crystals and their effects on the control of photons are investigated for possible applications to optical chip and functional devices. On the three-dimensional crystal, the effect of the introduction of light-emitter into the three-dimensional photonic crystal is investigated, and also the design of single defect cavity is performed, which is important for the development of the optical chip. On the two-dimensional photonic crystals, an ultra-small channel-drop-filtering device using unique phenomena of trapping and emission of photons by single defects in the 2D photonic crystal slab is described. These results encourage us to develop ultra-small optical integrated circuits using photonic crystals.