Seiko Epson Corporation

Mamoru Sugimoto

Kesatoshi Takeuchi

Jun Amako

Yojiro Okakura

Kazuyoshi Nakamura

Megumi Enari

Akira Aoyama

Hideaki Koike

Tatsuya Shimoda

Satoshi Nebashi

Takashi Hayashi

Satoshi Shimokawato

Tsutomu Ota

Yasuto Nose

Tetsuo Mano

Hidetoshi Yoshitaki

Shin Funada

Hideaki Nishida

Tatsuro Higashi

Keshatoshi Takeuchi

Isamu Sejimo

Shigeru Kogure

An electronic field enhancement element includes: a metal layer; a dielectric layer provided on the metal layer; and a plurality of fine metal structures provided on the dielectric layer. A refractive index n of the dielectric layer satisfies n'=n+i&#x3ba; and is in a range of 1&#x2266;n&#x3c;1.46, wherein a complex refractive index of the dielectric layer is n&#x2032;, an imaginary unit is i, and an extinction coefficient is &#x3ba;.

Electronic field enhancement element, analysis device, and electronic apparatus

An analysis apparatus includes an electric field enhancing element including a metallic layer, a transmissive layer on the metallic layer and transmitting excitation light, and metallic particles on the transmissive layer with first and second pitches in first and second directions; a light source irradiating the element with first direction linearly polarized light, second direction linearly polarized light, and/or circularly polarized light as the excitation light; and a detector detecting light from the element. The pitches are selected relative to the pitch of a diffraction grating. The thickness of the transmissive layer is selected relative to the wavelength of the excitation light.

Analysis apparatus and electronic device

An analysis device includes an optical element which includes a metal layer, a light transmitting layer on the metal layer, and a plurality of metal particles on the light transmitting layer arranged at a first interval P1 in a first direction and arranged at a second interval P2 in a second direction intersecting the first direction, P1&#x3c;P2&#x2266;Q+P1, a light source which irradiates incident light of linearly polarized light in the first direction onto the optical element, and a detector which detects light emitted from the optical element. Where Q represents the interval between diffraction gratings.

Analysis device, analysis method, optical element and electronic apparatus for analysis device and analysis method, and method of designing optical element

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

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 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.

The brushless electric machine includes a first drive member (U) having a plurality of permanent magnets (U); a second drive member () having a plurality of electromagnetic coils and capable of movement relative to the first drive member (U); and a third drive member (L) disposed at the opposite side from the first drive member (U) with the second drive member () therebetween. The second drive member () has magnetic sensors (A,B) for detecting the relative position of the first and second drive members. The third drive member (L) has at locations facing the permanent magnets of the first drive member (U) a plurality of magnetic field strengthening members (L) for strengthening the magnetic field at the location of the second drive member () in conjunction with the permanent magnets.

Brushless electric machine

The brushless motor includes a stator having a electromagnetic coil and a position sensor; an axis fixed to the stator; and a rotor having a permanent magnet. The rotor rotates around the axis. The rotor is linked to a driven member that is driven by the brushless motor.

Brushless motor

To provide a technique that improves an efficiency of using a magnetic field in a brushless electric machine. A brushless electric machine includes a first member having N sets (N is an integer of 2 or more) of electromagnetic groups, and a second member that has N+1 sets of magnetic field forming member groups and can move in a predetermined moving direction in relative to the first member. One set of the electromagnetic coil group and one set of the magnetic field forming member group are alternately disposed along a direction perpendicular to the moving direction.

Brushless electric machine and device comprising said machine

The brushless motor has a first and second drive member. The first drive member is equipped with M phase coil groups each having N electromagnetic coils where M is an integer of 1 or greater and N is an integer of 1 or greater. The second drive member has a plurality of permanent magnets, and is able to move relative to the first drive member. The first drive member has 2 (M&#xd7;N) magnetic body cores. Each phase electromagnetic coil is coiled on a periodically selected magnetic body core at a ratio of 1 to 2M from among the arrangement of 2 (M&#xd7;N) magnetic body cores.

Growing community of inventors

Chino, Japan

Mamoru Sugimoto