Seiko Epson Corporation

Jun Amako

Kazushige Umetsu

Daisuke Sawaki

Hirotsuna Miura

Tomio Sonehara

Kohei Yamada

Mamoru Sugimoto

Kimio Nagasaka

Masami Murai

Shinichi Yotsuya

Yusuke Sakagami

Katsuji Arakawa

Tsutomu Ota

Hideaki Koike

Kazuhiro Nishida

Kenichi Honda

Nobuko Watanabe

Yohei Kurashima

Yoshio Watanabe

Hideaki Nishida

Akira Miyamae

Takeo Kaneko

Shojiro Kitamura

Hideo Tanaya

Kazuto Yoshimura

Atsushi Takakuwa

Tsugio Ide

Eiichi Fujii

Tatsunori Miyazawa

Susumu Kayamori

Koehi Yamada

Hitoshi Nakao

There is provided a sample analysis element capable of uniting a propagating surface plasmon resonance with a localized surface plasmon resonance while increasing the surface density of the hot spots. The sample analysis element is provided with a plurality of metal nanobody lines. Each of the metal nanobody lines includes a plurality of metal nanobodies arranged in a line on a dielectric surface at a first pitch smaller than a wavelength of incident light, and the plurality of metal nanobody lines is arranged in parallel to each other at a second pitch larger than the first pitch.

Sample analysis element and detection device

A sample analysis device capable of realizing the enhancement of a near-field light while increasing a hotspot areal density is provided. In a sample analysis device, multiple nanostructures are arranged on the surface of a base body. A dielectric body is covered with a metal film in each nanostructure. The nanostructures form multiple nanostructure lines. In each nanostructure line, the nanostructures are arranged at a first pitch SP which is smaller than the wavelength of an excitation light and the nanostructure lines are arranged in parallel with one another at a second pitch LP which is greater than the first pitch SP.

Sample analysis device, testing apparatus, and sensor cartridge

A sensor chip includes: a substrate that has a planar portion; and a diffraction grating on the planar portion and having a metal surface, the diffraction grating having a target substance thereon and including: a plurality of first protrusions periodically arranged in a period equal to or greater than 100 nm and equal to or less than 1000 nm in a first direction parallel to the planar portion, a plurality of base portions located between two adjacent first protrusions and configures abase of the substrate, a plurality of second protrusions formed on upper faces of the plurality of first protrusions, and a plurality of third protrusions formed on the plurality of base portions.

Sensor chip, sensor cartridge, and analysis apparatus

An optical device includes a first protrusion group in which protrusions protruding from a conductor surface of a substrate are arranged in a first direction with a first period, a dielectric layer that covers the conductor surface and the first protrusion group, and a second protrusion group in which metal nanoparticles are arranged on the dielectric layer in the first direction with a second period different from the first period. When one of the first period and the second period is defined as Px, the other of the first period and the second period is defined as Px, and the wavelength of irradiation light is defined as &#x3bb;, &#x3bb;&#x3e;Px&#x3e;Pxand 0&#x3c;Px&#x2212;Px&#x3c;Px/2 are satisfied.

Optical device with propagating and localized surface plasmons and detection apparatus

A transmissive diffraction grating includes a polarization conversion layer, a first diffractive layer disposed on one surface side of the polarization conversion layer, and a second diffractive layer disposed on the other surface side of the polarization conversion layer. Both the first diffractive layer and the second diffractive layer include refractive index modulation structures arranged with a period P in a first direction, and diffraction efficiency for a TE polarized light component is higher than a diffraction efficiency for a TM polarized light component.

Transmissive diffraction grating and detection apparatus

A detection apparatus includes: a first light source group having a plurality of light sources; a switch that switches the plurality of light sources to activate at least one of the light sources, a first optical system that introduces light from the activated light source into an electrical conductor of an optical device; and a detector that detects Raman scattering light from the light scattered or reflected by the electrical conductor. Each of the plurality of light sources of the first light source group is capable of radiating light having different polarization directions.

Detection apparatus

An optical device includes a first projection group in which electrically conductive projections are arranged at a first period along a direction parallel to a virtual plane. When light traveling in a direction inclined with respect to a vertical line directed to the virtual plane is incident on the first projection group, surface plasmon resonance is generated at a first resonance peak wavelength and a second resonance peak wavelength. A first resonance peak wavelength band including the first resonance peak wavelength includes an excitation wavelength in surface-enhanced Raman scattering. A second resonance peak wavelength band including the second resonance peak wavelength includes a Raman scattering wavelength in the surface-enhanced Raman scattering.

Optical device, analyzing apparatus and spectroscopic method

An optical device includes a group of projections projecting from a conductor surface of a substrate, and arranged along a first direction at a pitch Px, a dielectric layer covering the conductor surface and the group of projections, and a metal nanostructure having metal nanoparticles each having a size d of the order of nanometers arranged on the dielectric layer along the first direction, assuming that the wavelength of irradiation light is &#x3bb;, &#x3bb;&#x3e;Px&#x3e;d is fulfilled, and assuming that a maximum value of an arrangement pitch between two of the metal nanoparticles adjacent to each other in the first direction is Qx, Px&#x3e;Qx is fulfilled.

Optical device and detection device

A plurality of metallic nano-body groups that includes metallic nano-bodies which are a size smaller than the wavelength of incident light and are dispersed on a dielectric surface is arranged in one direction at a pitch that resonates with the incident light. A long piece extends on the dielectric surface between adjacent metallic nano-body groups. The long piece is formed of a material having no free electron that performs resonance oscillation with the incident light. Localized surface plasmon resonance occurs in the metallic nano-body by the action of the incident light. Propagating surface plasmon resonance occurs by the action of the pitch. The propagating surface plasmon resonance is combined with the localized surface plasmon resonance. A so-called hybrid mode is established. The long piece is helpful in the establishment of the pitch.

Sample analysis element and detecting device

A plurality of metallic nano-body groups that includes metallic nano-bodies which are dispersed on a dielectric surface at a first pitch smaller than the wavelength of incident light is arranged in one direction at a second pitch that resonates with the incident light. Localized surface plasmon resonance occurs in the metallic nano-body by the action of the incident light. Propagating surface plasmon resonance occurs by the action of the second pitch. The propagating surface plasmon resonance is combined with the localized surface plasmon resonance. A so-called hybrid mode is established.

A sensor chip includes: a substrate that has a planar portion; and a diffraction grating, on which a target substance is placed, that includes a plurality of first protrusions periodically arranged in a period equal to or greater than 100 nm and equal to or less than 1000 nm in a first direction that is parallel to the planar portion, a plurality of base portions that is located between two of the first protrusions adjacent to each other and configures a base of the substrate, and a plurality of second protrusions that is formed on upper faces of the plurality of the first protrusions, has a surface formed from a metal, and is formed on the planar portion.

A spectrometry apparatus includes a transmissive diffraction grating that transmits incident light. The transmissive diffraction grating has inclined surfaces made of a first dielectric material. The inclined surfaces are arranged so that they are inclined relative to a reference line. When the angle of incidence of light incident on the transmissive diffraction grating is measured with respect to the reference line and defined as an angle &#x3b1;, and the angle of diffraction of diffracted light is measured with respect to the reference line and defined as an angle &#x3b2;, the angle of incidence &#x3b1; is smaller than a Bragg angle &#x3b8; defined with respect to the inclined surfaces, and the angle of diffraction &#x3b2; is greater than the Bragg angle &#x3b8;.

Spectrometry apparatus, detection apparatus, and method for manufacturing spectrometry apparatus

An optical device includes a projection group in which electrically conductive projections are arranged along a direction parallel to a virtual plane. The arrangement period of the projections in the projection group includes at least a first period and a second period different from the first period. The first period and the second period are shorter than a wavelength of an incident light.

Optical device and analyzing apparatus

A microstructure manufacturing method includes (a) generating first light including an interference fringe by crossing two laser beams, (b) forming a denatured region and a non-denatured region on an object having thermal non-linearity by applying the first light onto the object, so that the denatured region and the non-denatured region are disposed so as to correspond to a period of the interference fringe of the first light, and (c) etching the object so that the denatured region or the non-denatured region is selectively eliminated.

Microstructure manufacturing method

An optical device unit includes: an optical device which has an electrical conductor and is capable of enhancing Raman scattering light generated by receiving light from a light source; and a first guide unit which guides a gaseous sample to the optical device. The optical device unit is detachable from the detection apparatus.

Growing community of inventors

Matsumoto, Japan

Jun Amako