Kabushiki Kaisha Toshiba

Kou Yamada

Yasuyuki Hotta

Kenji Todori

Reiko Yoshimura

Tsukasa Tada

Miho Maruyama

Toshiro Hiraoka

Masakazu Yamagiwa

Shigeru Matake

Misa Sawanobori

It is made possible to provide an optical waveguide system that has a coupling mechanism capable of selecting a wavelength and has the highest possible conversion efficiency, and that is capable of providing directivity in the light propagation direction. An optical waveguide system includes: a three-dimensional photonic crystalline structure including crystal pillars and having a hollow structure inside thereof; an optical waveguide in which a plurality of metal nanoparticles are dispersed in a dielectric material, the optical waveguide having an end portion inserted between the crystal pillars of the three-dimensional photonic crystalline structure, and containing semiconductor quantum dots that are located adjacent to the metal nanoparticles and emit near-field light when receiving excitation light, the metal nanoparticles exciting surface plasmon when receiving the near-field light; and an excitation light source that emits the excitation light for exciting the semiconductor quantum dots.

Optical waveguide system

An optical waveguide includes a propagating light waveguide, a coupler including a photonic crystal, and a surface plasmon waveguide, the propagating light waveguide, the coupler, and the surface plasmon waveguide being disposed in one plane along a waveguiding direction.

Optical waveguide

Disclosed is a wiring member comprising a sheet-like porous substrate provided with a large number of open-cells which are three-dimensionally branched and opened to a first major surface as well as to a second major surface of the porous substrate, and a conductive portion formed on the first major surface of the porous substrate and formed at least partially an inter-penetrating structure together with the porous substrate at an interface of the porous substrate. The apertures of the open-cells on the first major surface have an average diameter and an average number of the apertures, at least one of which is smaller than that of the second major surface.

Wiring member and method of manufacturing the same

Growing community of inventors

Yokohama, Japan

Kou Yamada