Abstract: A light emitting device is provided including a switching element. The light emitting device includes a light emitting unit having a plurality of nanostructures that can emit lights with injection of currents, and a transistor provided in correspondence with the light emitting unit and controlling amounts of the currents injected in the nanostructures.

Abstract: In a light emitting device, a columnar part includes a first semiconductor layer, a second semiconductor layer different in conductivity type from the first semiconductor layer, and a light emitting layer disposed between the first semiconductor layer and the second semiconductor layer, the first semiconductor layer is disposed between the substrate and the light emitting layer, the light emitting layer includes a first layer, and a second layer larger in bandgap than the first layer, the first semiconductor layer has a facet plane, the first layer has a facet plane, the facet plane of the first semiconductor layer is provided with the first layer, and ?2>?1, in which ?1 is a tilt angle of the facet plane of the first semiconductor layer with respect to a surface of the substrate provided with the laminated structure, and ?2 is a tilt angle of the facet plane of the first layer provided to the facet plane of the first semiconductor layer with respect to the surface of the substrate.

Abstract: A light emitting device includes a substrate, and a laminate provided to the substrate and including a plurality of columnar portions, where each of the columnar portions includes a first semiconductor layer, a second semiconductor layer different in conductivity type from the first semiconductor layer, and a light emitting layer provided between the first semiconductor layer and the second semiconductor layer, the first semiconductor layer includes a facet surface, a c surface, and an m surface, the light emitting layer includes a facet surface region provided to the facet surface, and a c surface region provided to the c surface, the light emitting layer does not include a region provided to the m surface, and the c surface region is larger than the facet surface region in a plan view as viewed from a laminating direction of the laminate.

Abstract: A light-emitting device includes a substrate and a stack provided on the substrate. The stack includes a plurality of columnar portions each of which includes a first columnar portion and a second columnar portion which has a diameter smaller than a diameter of the first columnar portions. Each first columnar portion is provided between the substrate and the second columnar portions, and includes: a first semiconductor layer; a second semiconductor layer having a conductivity type different from a conductivity type of the first semiconductor layer; and a light-emitting layer provided between the first semiconductor layer and the second semiconductor layer and capable of generating light. The first semiconductor layer is provided between the substrate and the light-emitting layer. Each second columnar portion includes a third semiconductor layer having a conductivity type different from a conductivity type of the first semiconductor layer.

Abstract: A light emitter includes a substrate, a first semiconductor layer having a first conductivity type, a second semiconductor layer having a second conductivity type different from the first conductivity type, a light emitting layer provided between the first semiconductor layer and the second semiconductor layer and capable of emitting light when current is injected into the light emitting layer, and a third semiconductor layer provided between the substrate and the first semiconductor layer and having the second conductivity type, in which the first semiconductor layer is provided between the third semiconductor layer and the light emitting layer, and the third semiconductor layer has a protruding/recessed structure.

Abstract: A projector includes a laser light source, and a light modulating element that modulates light emitted from the laser light source in accordance with image information. The laser light source includes a substrate, and a photonic crystal structure that includes a light emitting layer that emits light, and causes the light emitted by the light emitting layer to be confined in an in-plane direction of the substrate and be emitted in a normal direction of the substrate.

Abstract: A light-emitting device includes a substrate and a stack provided on the substrate. The stack includes a plurality of columnar portions each of which includes a first columnar portion and a second columnar portion which has a diameter smaller than a diameter of the first columnar portions. Each first columnar portion is provided between the substrate and the second columnar portions, and includes: a first semiconductor layer; a second semiconductor layer having a conductivity type different from a conductivity type of the first semiconductor layer; and a light-emitting layer provided between the first semiconductor layer and the second semiconductor layer and capable of generating light. The first semiconductor layer is provided between the substrate and the light-emitting layer. Each second columnar portion includes a third semiconductor layer having a conductivity type different from a conductivity type of the first semiconductor layer.

Abstract: An imaging apparatus including a substrate, an imaging device provided on the substrate, and a light emitting device provided on the substrate and having a plurality of nano-structures.

Abstract: A drug application device irradiates terahertz light onto skin, outputs information concerning detection target cytokine determined from reflected rays of the terahertz light, and supplies a drug on the basis of the output information. A detection device irradiates terahertz light onto a patch attached to skin, and outputs information concerning detection target cytokine determined from reflected rays of the terahertz light.

Abstract: An infrared sensor includes a heat sensing element, the heat sensing element includes a first electrode, a second electrode and a dielectric film formed between the first electrode and the second electrode. The heat sensing element senses heat based on a change of a resistance value. The dielectric film includes at least Bi and Fe.

Abstract: A thermal detector includes a thermal detection element, a support member, and a fixing part supporting the support member. The support member mounts and supports the thermal detection element on a second side thereof with a first side thereof facing a cavity. The support member includes a first layer member disposed on the second side and having a residual stress in a first direction, and a second layer member laminated on the first layer member on the first side and having a residual stress in a second direction opposite to the first direction. A thermal conductance of the first layer member is less than a thermal conductance of the second layer member.

Abstract: An infrared sensor includes a heat sensing element in which a first electrode, a dielectric film, and a second electrode are sequentially laminated; and an electric charge detection device. The dielectric film represents antiferroelectricity and has a spontaneous polarization in a predetermined measurement environment. The electric charge detection device calculates an amount of relaxation current flowing by a change of the spontaneous polarization, and senses heat of the heat sensing element based on temperature dependence of the amount of relaxation current.

Abstract: A thermal detector includes a substrate, a support member, a spacer member, a thermal detection element, a detection circuit and a wiring part. The spacer member supports the support member over the substrate with a cavity part being formed therebetween. The thermal detection element is supported on the support member. The wiring part connects between the detection circuit and the thermal detection element, and has first through third conductive layer parts and a plurality of plugs. The first conductive layer part includes at least one layer disposed in the substrate. The second conductive layer part includes at least one layer disposed in the spacer member. The third conductive layer part includes at least one layer supported by the support member. The plugs respectively connect adjacent layers of the first conductive layer part, the second conductive layer part and the third conductive layer part, in a thickness direction of the substrate.

Abstract: A pyroelectric detector includes a first electrode, a second electrode, a pyroelectric body that is disposed between the first electrode and the second electrode, and a first gas barrier layer that covers the pyroelectric body. The first electrode includes a first layer and a second layer. The second layer is disposed between the first layer and the pyroelectric body, and the first layer is a second gas barrier layer.

Abstract: An infrared sensor includes a heat sensing element in which a first electrode, a dielectric film, and a second electrode are sequentially laminated; and an electric charge detection device. The dielectric film represents antiferroelectricity and has a spontaneous polarization in a predetermined measurement environment. The electric charge detection device calculates an amount of relaxation current flowing by a change of the spontaneous polarization, and senses heat of the heat sensing element based on temperature dependence of the amount of relaxation current.

Abstract: To provide a thermal electromagnetic wave detection element, a method for producing a thermal electromagnetic wave detection element, a thermal electromagnetic wave detection device, and an electrical apparatus, which are highly reliable and make it possible to prevent damage or deformation in the vicinity of the corner parts of a void, a thermal electromagnetic wave detection element includes: a semiconductor substrate; a support member provided on the semiconductor substrate; a detection unit that is provided on the support member and is able to extract from a pair of electrodes an electrical signal corresponding to a received amount of electromagnetic waves; and a pair of electrically conductive vias that perforate through the semiconductor substrate and are electrically connected to the pair of electrodes, a void that opens on the support member side being provided between the pair of vias of the semiconductor substrate.

Abstract: A biological information detector includes a substrate, a light-emitting element, a light-receiving element, and a bonding pad. The light-emitting element has a thickness of 20 ?m to 1000 ?m. The light-receiving element has a thickness of 20 ?m to 1000 ?m. The bonding pad is disposed at a position that overlaps the light-emitting element and that is displaced relative to a center of the light-emitting element in a plan view as viewed in a perpendicular direction perpendicular to an emitting surface of the light-emitting element. A wavelength of light emitted by the light-emitting element is within a range of 470 nm to 600 nm.

Abstract: A pyroelectric detector includes a first electrode, a second electrode, a pyroelectric body that is disposed between the first electrode and the second electrode, and a first gas barrier layer that covers the pyroelectric body. The first electrode includes a first layer and a second layer. The second layer is disposed between the first layer and the pyroelectric body, and the first layer is a second gas barrier layer.

Abstract: A pyroelectric light detector has a base unit, a support member, and a plurality of pyroelectric capacitors containing pyroelectric bodies. The support member includes a first surface and a second surface facing opposite the first surface, and has a hollow space section formed between the second surface and the base unit. The plurality of pyroelectric capacitors are supported by the support member. The plurality of pyroelectric capacitors supported by the support member are electrically connected in series in a direction matching the polarization direction. The position of the projection point for which the center of gravity of the light absorption region corresponding to the pyroelectric capacitor is projected two dimensionally with a plan view can be made to exist inside the region in which the contour line of the pyroelectric body of the pyroelectric capacitor is projected two dimensionally.

Abstract: A pyroelectric detector includes a support member, a capacitor and a fixing part. The support member includes a first side and a second side opposite from the first side, with the first side facing a cavity. The capacitor includes a pyroelectric body between a first electrode and a second electrode such that an amount of polarization varies based on a temperature. The capacitor is mounted and supported on the second side of the support member with the first electrode being disposed on the second side of the support member. The fixing part supports the support member, with the cavity being formed between the support member and the fixing part.