摘要:
A near-field interaction control element includes a near-field optical waveguide containing particles formed of a metal, a metal anion or a metal cation with a diameter of 0.5 nm or more and 3 nm or less and a dielectric constant of −2.5 or more and −1.5 or less, an electron injector/discharger injecting or discharging an electron into or from the particles contained in the near-field optical waveguide to vary a dielectric constant of the near-field optical waveguide, a near-field light introducing part introducing near-field light into the near-field optical waveguide, and a near-field light emitting part emitting the near-field light having guided through the near-field optical waveguide.
摘要:
A refractive index variable element has a structure including a solid matrix, and one or more types of quantum dots dispersed in the solid matrix and having discrete occupied and unoccupied electron energy levels. The quantum dots perform a function of generating a pair of positive and negative charges upon irradiation with light, a function of trapping a positive charge, and a function of trapping a negative charge. The quantum dots performing the function of trapping a negative charge are selected from the group consisting of a combination of a negatively charged accepter and a positively charged atom, where the outermost electron shell of the positively charged atom is fully filled with electrons so that an additional electron occupies an upper different shell orbital when receives an electron, a metal chelate complex, and metallocene and derivatives thereof.
摘要:
Refractive index changing apparatus includes quantum dots each having discrete energy levels including ground level and excited level, the excited level being higher than the ground level even if energy due to ambient temperature is provided on the quantum dots, barrier structure unit formed of dielectric which surrounds the quantum dots, injection unit configured to inject an electron into position of the ground level in each quantum dot via the barrier structure unit, utilizing tunneling effect, or to prevent injection of an electron into the position, injecting the electron or preventing injection of the electron controlled by changing an energy level of the injection unit, source which emits, to the quantum dots, first light beam having first energy for exciting electrons from the ground level to the excited level, and source which emits, to the quantum dots, second light beam having second energy different from the first energy.
摘要:
A near-field exposure mask according to an embodiment includes: a silicon substrate; and a near-field light generating unit that is formed on the silicon substrate, the near-field light generating unit being a layer containing at least one element selected from the group consisting of Au, Al, Ag, Cu, Cr, Sb, W, Ni, In, Ge, Sn, Pb, Zn, Pd, and C, or a film stack formed with layers made of some of those materials.
摘要:
According to one embodiment, a waveguide includes: a substrate and a member. The member covers at least a part of the substrate and has a difference in the refractive index from the substrate not less than 2. A plurality of concave parts are provided on the substrate. The concave parts are arrayed on an upper face of the substrate. At least a part of a side face of each of the concave parts includes an arc. An inner diameter of each of the concave parts is not more than 50 nm. Intervals of the neighboring concave parts are not more than the inner diameter. The member fills the concave part.
摘要:
A method using a chemical synthesis method to produce a metallic nanoparticle inorganic composite having fine metallic nanoparticles that are uniformly dispersed at a high density in a solidified matrix, a metallic nanoparticle inorganic composite, and a plasmon waveguide using this composite are provided. Thus, a method including: preparing a precursor solution, applying the precursor solution onto a substrate, and then hydrolyzing the precursor solution to form an oxide film having fine pores, bringing the oxide film into contact with an acidic aqueous solution of tin chloride to chemically adsorb Sn2+ ions in the fine pores, removing an excess of the Sn2+ ions, bringing the oxide film into contact with an aqueous metal chelate solution to precipitate metallic nanoparticles in the fine pores, and removing an excess of ions of the metal is provided.
摘要:
The present invention is related to a process for producing a metallic fine particle dispersed film which includes metallic fine particles dispersed densely within a silicon oxide layer without aggregation. The process includes hydrolyzing and polycondensing an organosilane to form a silicon oxide layer with hydroxyl and/or alkoxide groups remaining unremoved on its side chains, bringing the silicon oxide layer into contact with an aqueous acidic tin chloride solution, and then bringing the silicon oxide layer into contact with an aqueous metal chelate solution to disperse metallic fine particles in the silicon oxide layer.
摘要:
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.
摘要:
An organic molecular memory of an embodiment includes a first conductive layer, a second conductive layer, and an organic molecular layer interposed between the first conductive layer and the second conductive layer, the organic molecular layer including charge-storage molecular chains or variable-resistance molecular chains, the charge-storage molecular chains or the variable-resistance molecular chains including fused polycyclic groups.
摘要:
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.