Sony Corporation

Tohoku University

Hitachi, Ltd.

Hitachi High-Tech Corporation

Shunsuke Kono

Masaru Kuramoto

Hideki Watanabe

Rintaro Koda

Hiroyuki Yokoyama

Takuya Kambayashi

Tomoyuki Oki

Takao Miyajima

Toshimitsu Noguchi

Masao Ikeda

Akihiro Nojima

Hiroshi Yoshida

Katsunori Yanashima

Mikihiro Yokozeki

Kota Tokuda

An object of the present invention is to realize an optical analysis system that enables long-term analysis by reducing the amount of liquid used for analysis. The optical analysis system includes: a first flow channel for transporting a liquid in a container; a branching medium for alternately outputting the liquid and the gas in the first flow channel; a third flow channel for transporting the liquid and the gas flowing out from the branching medium; an analysis cell into which the liquid and the gas in the third flow channel flow; a fourth flow channel that is connected to the analysis cell to discharge the liquid and the gas after passing through the analysis cell; a pump for transporting the liquid and the gas; and a control device. Then, the control device sets a reference liquid amount that is a reference required for analysis, and controls the branching medium and the pump to make the liquid and the gas alternately flow into the third flow channel. The amount of gas flowing into the third flow channel is made larger than the amount of liquid.

Optical analysis system and control method of optical analysis system

An ultrasonic transducer holder, which is an embodiment, has a detachable container for containing a liquid sample, and transmits an ultrasonic wave. The ultrasonic transducer holder includes an ultrasonic transducer that emits an ultrasonic wave, and a protective layer that is fixed to the ultrasonic transducer and transmits the ultrasonic wave to the container. The protective layer includes a first surface that is a surface to which the ultrasonic transducer is fixed, and a second surface that is a back surface of the first surface and is designed to fix the container via a contact medium.

Ultrasonic transducer holder, container, and analysis system using same

An arithmetic expression used for estimating a target item of a specimen is more easily incorporated into an optical measurement system. An optical measurement instrument includes an optical analysis unit configured to perform an optical analysis on a specimen and measure an intensity of light as a result of the optical analysis, and an arithmetic processing unit configured to download an arithmetic expression from a server device via a network, and perform a quantitative analysis on a target substance contained in the specimen by substituting the result of the optical analysis by the optical analysis unit into the arithmetic expression.

Optical measurement instrument, server device, and optical measurement method

[Object] To provide a vertical cavity surface emitting laser element and an electronic apparatus that have high light emission efficiency. [Solving Means] A vertical cavity surface emitting laser element according to the present technology includes: an active layer; a first cladding layer; and an intermediate layer. The first cladding layer is provided on the active layer. The intermediate layer is provided on the first cladding layer, electrons in the intermediate layer having potential higher than potential of electrons in the first cladding layer, holes in the intermediate layer having potential higher than potential of holes in the first cladding layer.

Vertical cavity surface emitting laser element and electronic apparatus

The object of the invention is to perform, rapidly and at a low cost, a pretreatment of an analysis sample containing a turbid substance. Provided is an analysis sample pretreatment apparatus in which a clarified liquid is obtained by removing a turbid substance from an analysis sample. The analysis sample pretreatment apparatus includes a cell configured to store the analysis sample, and a cell holder in which at least a part of a housing is opened to mount the cell. The cell holder includes an ultrasonic wave transducer and an ultrasonic wave reflection plate that are disposed on facing plane pairs while sandwiching the cell mounted inside the cell holder. The cell includes a first opening unit from which the analysis sample flows in, a second opening unit from which the clarified liquid flows out, and a third opening unit from which the turbid substance is discharged. In a state where the cell is mounted in the cell holder, the first opening unit is provided at a position lower than an upper end of the ultrasonic wave transducer in a vertical direction, or at a position higher than a lower end of the ultrasonic wave transducer in the vertical direction.

System providing an ultrasonic pretreatment for separating particles from an analysis sample

It is possible to reduce a burden on a user in performing a spectroscopic analysis of a liquid sample. There is provided an analysis cell that is detachable and replaceable with respect to an analysis unit and accommodates a liquid sample, the analysis cell including a first wall surface pair that is made of a material transmitting a light, and a second wall surface pair for propagating an ultrasonic wave to the accommodated liquid sample, in which a first wall surface and a second wall surface forming the second wall surface pair and facing each other, are formed of materials having different acoustic impedances.

Analysis cell with wall surfaces having different acoustic impedances and analysis unit including the analysis cell

A monolithic laser device assemblyA in the present disclosure includes a first gain portionhaving a first end portionA and a second end portionB, a second gain portionhaving a third end portionA and a fourth end portionB, one or multiple ring resonators, a semiconductor optical amplifierfor amplifying a laser light emitted from the first gain portion, and a pulse selectordisposed between the first gain portionand the semiconductor optical amplifier, in which the ring resonatoris optically coupled with the first gain portionand with the second gain portion, and laser oscillation is performed on either the first gain portionor the second gain portion

Laser device assembly

In order to analyze a solution component and a scatterer component in a liquid sample more quickly, there is provided an optical analysis device including a light source unit configured to irradiate a liquid sample with light; a first light receiving unit configured to receive transmitted light emitted from the light source unit and transmitted through the liquid sample; a second light receiving unit configured to receive scattered light emitted from the light source unit and scattered by a scatterer in the liquid sample; an ultrasonic irradiation unit configured to irradiate the liquid sample with an ultrasonic wave; a reflection plate configured to reflect the ultrasonic wave that is emitted from the ultrasonic irradiation unit and propagated through the liquid sample; and a control unit configured to control the light source unit, the first light receiving unit, the second light receiving unit, and the ultrasonic irradiation unit.

Optical analysis device, optical analysis method, and optical analysis

To provide a reaction system capable of analyzing a liquid sample with high accuracy. To provide a reaction system A including: a reaction vessel, a flow channelincluding a deformable unithaving an elastic member, a pump, a flow channel deformation mechanism, a measurement unitand an analysis unit, wherein the measurement unitincludes a light source unitand a light receiving unit, the flow channel deformation mechanismincludes an operation unitfor deforming the deformable unitof the flow channelsuch that a cross-sectional area of the deformable unitis reduced, and the analysis unitis electrically or physically connected to the measurement unitand the flow channel deformation mechanism, and operates the flow channel deformation mechanismbased on a measurement result obtained by the measurement unit

Reaction system and reaction method

An analysis system is provided which enables an optical analysis with high accuracy. An analysis system A in which light is radiated on a liquid sample to analyze the sample includes a reaction partwhich includes a reaction tank, an inlet port, and an outlet port, an analysis partwhich includes an analysis cell, at least one light source part, and at least one light receiving part, and a flow path tubewhich includes a first flow pathand a second flow path. A measurement partof the analysis cellincludes a first measurement portionand a second measurement portion, which have mutually different sectional areas.

Analysis system, analysis bypass, and analysis method

Provided is an optical semiconductor element including: a stacked structure bodyformed of a first compound semiconductor layer, a third compound semiconductor layer (active layer), and a second compound semiconductor layer. A fundamental mode waveguide regionwith a waveguide width W, a free propagation regionwith a width larger than W, and a light emitting regionhaving a tapered shape (flared shape) with a width increasing toward a light emitting end surfaceare arranged in sequence.

Optical semiconductor element and laser device assembly

A semiconductor laser apparatus is provided. The semiconductor laser apparatus includes a mode-locked semiconductor laser device and an external resonator including a dispersion compensation system, wherein the semiconductor laser apparatus is configured to generate self modulation, to introduce a negative group velocity dispersion into the external resonator, and to provide spectral filtering after the external resonator.

Semiconductor laser apparatus assembly

A semiconductor-laser-device assembly includes a mode-locked semiconductor-laser-element assembly including a mode-locked semiconductor laser element, and a dispersion compensation optical system, on which laser light emitted from the mode-locked semiconductor laser element is incident and from which the laser light is emitted; and a semiconductor optical amplifier having a layered structure body including a group III-V nitride-based semiconductor layer, the semiconductor optical amplifier configured to amplify the laser light emitted from the mode-locked semiconductor-laser-element assembly.

Semiconductor-laser-device assembly

Disclosed is a semiconductor laser device assembly including a semiconductor laser device; and a dispersion compensation optical system, where a laser light exited from the semiconductor laser device is incident and exits to control a group velocity dispersion value of the laser light exited from the semiconductor laser device per wavelength.

Semiconductor laser device assembly

A semiconductor laser device assembly includes (A) a semiconductor laser element and (B) a diffraction grating that configures an external resonator, returns diffraction light other than zero-th order diffraction light to the semiconductor laser element, and outputs the zero-th order diffraction light to the outside. An extension direction of a diffraction surface of the diffraction grating and a main vibration direction of a field of a laser beam incident on the diffraction grating are substantially parallel to each other.

Growing community of inventors

Miyagi, Japan

Shunsuke Kono