Patent application number | Description | Published |
20080297800 | OPTICAL ELEMENT, SENSOR DEVICE, MANUFACTURING METHOD OF OPTICAL ELEMENT, DETECTION ELEMENT, TARGET SUBSTANCE MEASURING DEVICE AND DETECTION METHOD - An optical element | 12-04-2008 |
20090021742 | SENSOR APPARATUS - A plasmon sensor apparatus using a metallic fine periodic structure designed to reduce the dependences of the resonance wavelength and sensitivity on the incident angle. The plasmon sensor apparatus has a sensing element including a metallic member having periodic slit openings and metallic portions, and a substrate on which the metallic member is held, a light source which emits light so that the light is incident on the sensing element, and a photodetector which detects light obtained from the light source. If the period of the slit openings is Λ; the width of the metallic portions is d; and the thickness of the metallic member is h, the aspect ratio h/(Λ−d) of the slit openings is 3 or higher and the opening width (Λ−d) is equal to or smaller than the wavelength of light applied from the light source to the sensing element. | 01-22-2009 |
20090117669 | SUBSTRATE FOR TARGET SUBSTANCE DETECTING DEVICE, TARGET SUBSTANCE DETECTING DEVICE, TARGET SUBSTANCE DETECTING APPARATUS AND METHOD USING THE SAME, AND KIT THEREFOR - A substrate for forming a target substance detecting device includes a supporting member, an underlying layer disposed on a surface of the supporting member, and a metal pattern layer, disposed on a surface of the underlying layer, for being bound to a target substance trapping substance capable of trapping a target substance in a specimen solution at least containing water as a liquid medium to detect the target substance by utilizing plasmon resonance. The underlying layer has a refractive index nb satisfying the following relationship: | 05-07-2009 |
20090207398 | Near Field Exposure That Reduces Scatter of a Surface Plasmon Polariton Wave Going Around a Light Blocking Member - An exposure mask in which exposure of an exposure object is carried out on the basis of near field light leaking from a plurality of openings provided in a light blocking member in a mutually adjoining relation, in which the spacing between adjacent openings is not greater than the wavelength of light used for the exposure, and an end portion of the opening at the exposure object side has a structure effective to reduce scatter of a surface plasmon polariton wave going around to the exposure object side of the light blocking member. | 08-20-2009 |
20090296246 | OPTICAL FILTER - An optical filter includes a light-shielding conductive layer provided with a plurality of apertures on a substrate surface that selectively transmits light of a first wavelength, and a dielectric layer in contact with the conductive layer. A size of the apertures is a size equal to or less than the first wavelength, and a ratio of a surface area of the conductive layer to a surface area of the substrate surface is within a range of equal to or greater than 36% and equal to or less than 74%. A transmissivity of the first wavelength is increased by surface plasmons induced in the apertures by light falling on the conductive layer. | 12-03-2009 |
20090310133 | METHOD FOR DESIGNING LIGHT TRANSMISSION DEVICE, OPTICAL ELEMENT AND SENSOR - The present invention provides a method for designing a light transmission device, which adjusts a wavelength region of a spectrum of transmitted light without expanding a width of a transmission spectrum and without lowering the transmittance. The method for designing a light transmission device having a metal thin film, and a rectangular aperture which is formed in a plane of the metal thin film, has a long side and a short side and makes light pass therethrough, wherein the short side has a dimension smaller than a wavelength of incident light, and the long side is determined to have such a dimension that a peak wavelength at which the transmittance of light passing through the rectangular aperture is maximal can be a predetermined value. | 12-17-2009 |
20100045996 | SENSING APPARATUS - A sensing apparatus comprises a sensing element having a metal member of a periodic structure formed on a substrate, a light source for projecting a light beam to the sensing element, and a photosensor for sensing the light beam from the sensing element, wherein the sensing element has an optical waveguide layer between the substrate and the metal member, and the light beam illuminated from the light source and propagating in the optical waveguide layer and the light of a Rayleigh mode formed by the metal member are phase-matched. | 02-25-2010 |
20100097610 | OPTICAL ELEMENT AND METHOD FOR PREPARING THE SAME, SENSOR APPARATUS AND SENSING METHOD - In the fields of biosensing and the like, achievement of high sensitivity and high performance has been demanded in the concentration detection of target substances. In order to meet such demand, disclosed is an optical element utilizing the localized surface plasmon resonance, including: a dielectric substrate; a first group of metal microstructures in which a plurality of metal microstructures is supported on a dielectric substrate in an in-plane direction of the substrate; and a second group of metal microstructures in which a plurality of metal microstructures is disposed in the in-plane direction, and each of the metal microstructures is partially exposed to the outside; wherein the first group of metal microstructures and the second group of metal microstructures are laminated so as to be separated from each other by 100 nm or more. | 04-22-2010 |
20100309480 | OPTICAL TOMOGRAPHY - An optical tomography imaging a tomogram by using a coherent light by a backscattering light of a measured object and a reflected light of a reference mirror, which has supercontinuum light sources, an optical system having group velocity dispersion connected to the supercontinuum light source, an optical detection element detecting a coherent light by a backscattering light of the measured object and a reflected light of the reference mirror, a timing detection element detecting a timing of each wavelength component in an output light from the optical system having the group velocity dispersion, and a unit sampling a signal from the optical detector by using a timing signal from the timing detection element with a signal from the supercontinuum light source as a trigger, and detecting an optical tomogram signal imaging a tomogram, thereby acquiring an optical tomogram at a higher speed than a conventional SS-OCT. | 12-09-2010 |
20100328587 | OPTICAL FILTER, SOLID-STATE IMAGING ELEMENT HAVING THE FILTER, AND IMAGING APPARATUS - An optical filter includes a substrate, and a periodic structure in which a plurality of members formed of silicon are periodically arranged on a surface of the substrate. The filter selectively transmits light of a first wavelength included in light incident on the periodic structure in the direction of the substrate. The members are two-dimensionally arranged with a period of 400 nm to 500 nm. The dimension of the members in the direction parallel to the surface is of 120 nm to 160 nm. A local maximum value of the transmission spectrum of the first wavelength is within the range of 400 nm to 500 nm. | 12-30-2010 |
20120038995 | OPTICAL FILTER - An optical filter includes a light-shielding conductive layer provided with a plurality of apertures on a substrate surface that selectively transmits light of a first wavelength, and a dielectric layer in contact with the conductive layer. A size of the apertures is a size equal to or less than the first wavelength, and a ratio of a surface area of the conductive layer to a surface area of the substrate surface is within a range of equal to or greater than 36% and equal to or less than 74%. A transmissivity of the first wavelength is increased by surface plasmons induced in the apertures by light falling on the conductive layer. | 02-16-2012 |