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Dai Ohnishi, Kyoto-Shi JP

Dai Ohnishi, Kyoto-Shi JP

Patent application numberDescriptionPublished
20080240179Two-dimensional photonic crystal surface-emitting laser - The two-dimensional photonic crystal surface emitting laser according to the present invention includes a number of main modified refractive index areas periodically provided in a two-dimensional photonic crystal and secondary structures each relatively located in a similar manner to each of the main modified refractive index areas. The location of the secondary structure is determined so that a main reflected light which is reflected by a main modified refractive index area and a secondary reflected light which is reflected by a secondary structure are weakened or intensified by interference.10-02-2008
20080240193Two-dimensional photonic crystal surface-emitting laser - The two-dimensional photonic crystal surface emitting laser according to the present invention includes a semiconductor substrate, a main laser section and a reflection film. The main laser section includes a lower cladding layer, an active layer, a two-dimensional photonic crystal layer, an upper cladding layer and a contact layer, which are all deposited on the semiconductor substrate. The reflection film, which surrounds the entire side surfaces of the main laser section, is made of a thin titanium-gold film deposited by sputtering.10-02-2008
20090034566Photonic crystal laser - One objective of the present invention is to provide a laser device which is capable of scanning beams of a laser light of high output power at a high speed without using mechanical scanning mechanisms. A plurality of the upper electrodes 02-05-2009
20090058274Organic Electroluminescence Device and Organic Laser Diode - There is provided an organic electroluminescence device including of a substrate, an anode layer, an organic layer including at least one organic material and a cathode layer. A primary light outgoing direction of the device is parallel to a surface of the substrate. Any one of cutoff wavelengths in a transverse electric mode of an optical waveguide having a core layer partially formed of the organic layer is within a wavelength range of a full width at half maximum of a fluorescence spectrum of any one of the organic materials included in the organic layer.03-05-2009
20090135871Two-Dimensional Photonic Crystal Surface Emitting Laser - An objective of the present invention is to provide a laser capable of producing a radially polarized laser beam with an annular cross section. A laser oscillator 05-28-2009
20090175304Two-Dimensional Photonic Crystal Surface Emitting Laser Light Source - A two-dimensional photonic crystal surface emitting laser light source according to the present invention includes a two-dimensional photonic crystal made of a plate-shaped body material provided with a periodic arrangement of identically-shaped holes 07-09-2009
20090195783SURFACE PLASMON RESONANCE SENSOR CHIP - A surface plasmon resonance sensor chip includes: a first dielectric layer; a metal layer disposed on the first dielectric layer; and a second dielectric layer covering the metal layer, the chip being provided with an opening that makes a part of a surface on the side of the second dielectric layer of the metal layer be exposed, and allows a measurement sample and the surface on the side of the second dielectric layer to contact each other, wherein an organic molecule film is provided at least one of between the first dielectric layer and the metal layer, and between the metal layer and the second dielectric layer.08-06-2009
20090209028Sensing Chip - There is provided a sensing chip capable of measuring a refractive index by utilizing a long-range surface plasmon polariton, accurately measuring an accumulative refractive index in a wide range, and more easily enabling sealing for measurement. The present invention relates to the sensing chip which has a thin metal film or a strip-like metal grown on an underlayer, and has a dielectric that limits a refractive index and a dielectric buffer layer on an upper surface and a lower surface of the thin metal film or the strip-like metal. The dielectric buffer layer is attached onto the thin metal film or the strip-like metal. The thin metal film or the strip-like metal and the buffer layer are sandwiched between two dielectric layers. A hole is made in a surface of the upper dielectric layer to serve as a measurement groove.08-20-2009
20090285255Two-Dimensional Photonic Crystal Surface Emitting Laser Light Source - An objective of the present invention is to provide a surface emitting laser capable of selectively generating a laser oscillation in the fundamental mode and thereby emitting a single-wavelength laser light. In a surface emitting laser including an active layer and a two-dimensional photonic crystal provided on one side of the active layer, a reflector 11-19-2009

Patent applications by Dai Ohnishi, Kyoto-Shi JP