Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.

Abstract: A radiation imaging device according to one embodiment comprises a radiation detection panel, a base substrate having a support surface configured to support the radiation detection panel, and a housing, wherein: the housing has a top wall and a bottom wall, the base substrate has a protruding portion which protrudes further outward than the radiation detection panel when seen in a direction orthogonal to the support surface, a first extending portion is provided to the support surface of the protruding portion, a second extending portion is provided to a back surface of the protruding portion, the second extending portion being disposed at a position which it faces the first extending portion with the protruding portion interposed therebetween, and the base substrate is supported on the top wall via the first extending portion and is supported on the bottom wall via the second extending portion.

Abstract: An optical module includes a mirror unit, a magnet unit, and a package including a recess. The magnet unit includes a first magnet and a second magnet. The recess includes a base wall portion to which an upper surface of the magnet unit is fixed, and a side wall portion facing a side surface of the magnet unit. The mirror unit is disposed on a second surface on an opposite side of the base wall portion from a first surface to which the magnet unit is fixed. A second upper surface of the second magnet is located closer to the lower side than a first upper surface of the first magnet. The magnet unit is fixed to the base wall portion by an adhesive material disposed at least between the first surface of the base wall portion and the second upper surface of the second magnet.

Abstract: An electrodeless laser-driven light source includes a laser that generates a CW sustaining light. A pump laser generates pump light. A Q-switched laser crystal receives the pump light generated by the pump laser and generates pulsed laser light at an output in response to the generated pump light. A first optical element projects the pulsed laser light along a first axis to a breakdown region in a gas-filled bulb comprising an ionizing gas. A second optical element projects the CW sustaining light along a second axis to a CW plasma region in the gas-filled bulb comprising the ionizing gas. A detector detects plasma light generated by a CW plasma and generates a detection signal at an output. A controller generates control signals that control the pump light to the Q-switched laser crystal so as to extinguish the pulsed laser light within a time delay after the detection signal exceeds a threshold level.

Abstract: A sample support body is used for ionizing a component of a sample. The sample support body includes: a substrate; a porous layer provided on the substrate and having a front surface on a side opposite to the substrate; and a partition portion partitioning the front surface into a first region and a second region. The porous layer includes a main body layer having a plurality of holes opening to the front surface. The partition portion includes a partition groove formed on the front surface so as to pass between the first region and the second region.

Abstract: An X-ray detection device includes a capillary, an X-ray detection element, and a detection circuit. The capillary has a plurality of X-ray passing regions. The X-ray detection element has a conversion portion and a plurality of pixel electrode portions. The conversion portion faces the capillary and absorbs X-rays to generate carriers. The detection circuit detects carriers collected from the conversion portion through the plurality of pixel electrode portions. When a plurality of carriers generated by incidence of an X-ray are dispersed and collected in two or more of the pixel electrode portions, the detection circuit determines one of the pixel electrode portions corresponding to an X-ray incidence position and corrects and evaluates an amount of carriers in the one of the pixel electrode portions or ignores the incidence of the X-ray.

Abstract: An optical module includes a mirror unit, a magnet unit, and a package including a recess accommodating the magnet unit. The magnet unit includes a plurality of magnets arranged along a first direction. The recess includes a base wall portion which extends along the first direction and to which an upper surface of the magnet unit is fixed, and a side wall portion extending along a second direction intersecting the first direction, and facing a side surface of the magnet unit. The recess includes an opening portion that is delimited by the side wall portion and open to a lower side. The mirror unit is disposed on a second surface on an opposite side of the base wall portion from a first surface to which the magnet unit is fixed. The side wall portion protrudes to the lower side with respect to a bottom surface of the magnet unit.

Abstract: A semiconductor light receiving element includes: a substrate; a semiconductor stacked portion that is formed on a first region of the substrate; and a first electrode and a second electrode that are electrically connected to the semiconductor stacked portion. Te semiconductor stacked portion includes: a light absorption layer of a first conductivity type including InxGa1-xAs; and a second region of a second conductivity type other than the first conductivity type that is located on the opposite side to the substrate with respect to the light absorption layer and bonded to the light absorption layer. The first electrode is connected to a first portion of the first conductivity type located on the substrate side with respect to the light absorption layer in the semiconductor stacked portion.

Abstract: A spectroscopic measurement apparatus includes an optical system, a photodetector, and an analysis unit. The optical system guides measurement target light from an object to a light receiving surface of the photodetector, and forms a spectral image of the measurement target light on the light receiving surface of the photodetector. The photodetector includes the light receiving surface on which a plurality of pixels are arranged respectively on a plurality of rows. The photodetector receives the spectral image for a first exposure time by a plurality of pixels in a first region on the light receiving surface, and outputs first spectrum data. The photodetector receives the spectral image for a second exposure time by a plurality of pixels in a second region on the light receiving surface, and outputs second spectrum data. The second exposure time is longer than the first exposure time.

Abstract: An imaging apparatus includes a light source, a spatial light modulator, a Fourier transform optical system, a photodetector, and a control unit. The control unit sets a first region and a second region on a modulation plane of the spatial light modulator, sequentially sets a plurality of light phase modulation patterns in the first region, sequentially sets a plurality of uniform phase shifts in a region other than the first region when setting each light phase modulation pattern in the first region to acquire a light intensity value, and acquires a phase image of a region of an object corresponding to the first region using a phase shift method.

Abstract: A sample observation device includes: an emission optical system that emits planar light to a sample; a scanning unit that scans the sample in one direction so as to pass through an emission surface of the planar light; an imaging optical system that has an observation axis inclined with respect to the emission surface and forms an image of observation light generated in the sample by emission of the planar light; an image acquisition unit that acquires image data corresponding to an optical image of the observation light formed by the imaging optical system; and an image generation unit that generates observation image data of the sample based on the image data acquired by the image acquisition unit. The imaging optical system has a non-axisymmetric optical element that bends a light beam on one axis of the observation light but does not bend a light beam on the other axis perpendicular to the one axis.

Abstract: An X-ray generation target includes a plurality of long target parts generating X-rays in response to incidence of an electron beam and a target part holder in which the plurality of target parts are buried to be parallel to each other. The target part holder includes a mark part indicating an arrangement state of the target parts.

Abstract: A laser processing method includes: a forming step of forming a plurality of modified spots along an imaginary plane inside a work piece by irradiating an inside of the work piece with laser light from a surface. The work piece includes a first region and second region when viewed in a direction perpendicular to the surface. In the forming step, a plurality of modified spot rows formed of the plurality of modified spots arranged along a boundary between the first region and the second region are formed in the second region, the plurality of modified spot rows being arranged along a direction intersecting an arrangement direction of the plurality of modified spots, and a crack extending from the second region to the first region is formed by forming the plurality of modified spot rows.

Abstract: A sample support body includes a substrate and a porous layer provided on the substrate and having a surface opposite the substrate. The porous layer includes a body layer having a plurality of holes open to a surface of the porous layer. Each of the plurality of holes includes an extension portion extending in a thickness direction of the substrate and an opening widened from an end of the extension portion on a surface side toward the surface. An average value of the depths of the plurality of holes is 3 ?m or more and 100 ?m or less. A value obtained by dividing the average value of the depths by an average value of the widths of the plurality of holes is 9 or more and 2500 or less.

Abstract: The present disclosure relates to a radiation detector that is capable of preventing deterioration in an SN ratio of a read-out signal. The radiation detector includes a TlBr crystalline body, and a first electrode and a second electrode that have been provided on respective electrode formation surfaces. At least one of the first electrode and the second electrode includes a first layer and a second layer. The first layer formed on the electrode formation surface contains metallic thallium, or a first alloy of metallic thallium and another metal. The second layer on the first layer contains an alloy of a first metal and a second metal. A diffusion coefficient of metallic thallium to a layer comprised of the alloy of the first metal and the second metal is smaller than a diffusion coefficient of metallic thallium to a layer comprised of the second metal.

Abstract: An imaging unit includes: a first sensor module; a second sensor module; a processing substrate; a first connection member; and a second connection member. The first sensor module includes a first lens and a first sensor. The second sensor module includes a second lens and a second sensor. The processing substrate executes image processing based on the first image signal and the second image signal. The first connection member electrically connects the first sensor module and the processing substrate, and has flexibility. The second connection member electrically connects the second sensor module and the processing substrate, and has flexibility.

Abstract: Provided is a cooling unit to be used in an inspection of a semiconductor device. The cooling unit includes a jacket for dissipating heat of the semiconductor device. The jacket is provided with a light passing portion for passing light from the semiconductor device. The jacket has a space defining surface that faces the semiconductor device and defines a space between the space defining surface and the semiconductor device in a state where the light passing portion faces the semiconductor device. The jacket is provided with a supply flow path through which a fluid to be supplied to the space flows.

Abstract: A heatsink includes: a base plate thermally connected to a heat-generating unit; a plurality of heat radiation fins erected on a surface of the base plate, and arranged with gaps in a first direction along the surface; and a partition member provided to intersect the plurality of heat radiation fins, and partitioning the plurality of heat radiation fins in a second direction along the surface and intersecting the first direction. The partition member partitions the plurality of heat radiation fins such that more air passes through in the second direction between the plurality of heat radiation fins on a base plate side than on a side opposite to the base plate side.

Abstract: A light emitting diode element includes: a first element portion including a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, and a first active layer; and a second element portion including a third semiconductor layer of the first conductivity type, a fourth semiconductor layer of the second conductivity type, and a second active layer. The first and second element portions are electrically connected to each other by a tunnel junction portion. When the first conductivity type is n-type, the first element portion includes an electron barrier layer arranged between the first active layer and the tunnel junction portion. When the first conductivity type is p-type, the second element portion includes an electron barrier layer arranged between the second active layer and the tunnel junction portion. The electron barrier layer includes AlGaAsSb or AlInAsSb.

Abstract: An optically pumped magnetometer includes cells configured to form a first cell region and a second cell region on a measurement target, a pump laser, a probe laser, a first optical system configured to cause pump light to be incident on the first cell region, a second optical system configured to cause the pump light having passed through the first cell region to be incident on the second cell region, a third optical system configured to cause first probe light to be incident on the first cell region, a fourth optical system configured to cause second probe light to be incident on the second cell region, detection portions configured to detect the first probe light having passed through the first cell region and the second probe light having passed through the second cell region, and a deriving portion configured to derive an intensity of a magnetic field.