An electromagnetic wave sensor has electromagnetic wave absorbers disposed side by side in first and second directions, temperature detection portions held by the respective electromagnetic wave absorbers and sets of two arm portions connected to each of the electromagnetic wave absorbers at two connection portions. In a plan view, the arm portions have two first extending portions extending from the connection portions in directions of which components in the second direction are opposite to each other, and two second extending portions extending from the first extending portions in directions of which components in the first direction are opposite to each other. Four sides of a rectangle circumscribing each of the electromagnetic wave absorbers with a smallest area are inclined with respect to the first direction in directions in which each of the electromagnetic wave absorbers approaches the second extending portions with the connection portions as fulcrums.

A method makes an electromagnetic radiation detecting device including at least one thermal detector with an absorbent membrane suspended above a substrate, intended to be located in a sealed cavity. The method includes depositing, on the substrate, a gettering metallic layer including a metallic material with a gettering effect; depositing a carbonaceous sacrificial layer of amorphous carbon on the gettering metallic layer; depositing at least one sacrificial mineral layer on the carbonaceous sacrificial layer; chemical-mechanical planarization of the sacrificial mineral layer; fabricating the thermal detector so that the absorbent membrane is produced on the sacrificial mineral layer; removing the sacrificial mineral layer; and removing the carbonaceous sacrificial layer.

The present publication describes a heat-resistant optical layered structure, a manufacturing method for a layered structure, and the use of a layered structure as a detector, emitter, and reflecting surface. The layered structure comprises a reflecting layer, an optical structure on top of the reflecting layer, and preferably shielding layers for shielding the reflecting layer and the optical structure. According to the invention, the optical structure on top of the reflecting layer comprises at least one partially transparent layer, which is optically fitted at a distance to the reflecting layer.

A wearable device includes a sensor device and a clothes to which the sensor device is attached. The clothes includes a clothes body and an insertion and extraction portion that has an opening formed in the clothes body and enables the sensor device to be inserted into or extracted from the clothes body. The sensor device includes a humidity sensor configured to measure humidity in the clothes body and a housing having a first region exposed to an inside of the clothes body and a second region exposed to an outside of the clothes body, while the sensor device is inserted from the insertion and extraction portion into the clothes body. The humidity sensor is accommodated in the first region of the housing.

A photothermal converter using a wavelength selective perfect absorber made of a low-loss metal material or dielectric and a heat detection sensor are combined to develop a sensor that efficiently converts light of a specific wavelength into heat and further electrically detects the heat. Here, since the wavelength selective perfect absorber of the present invention has a periodic structure, it has high directivity, and can also be used as a small motion sensor or a watching sensor using detection of thermal radiation. In addition, it can also be used as a high-precision small position sensor by being combined with a laser light source matching the resonance wavelength of the sensor.

A solar radiation heat sensor device includes: a black plate having a black surface; a silver plate having a silvery-white surface; a casing that supports the black plate and the silver plate in such a manner as to be exposed to an outside with the black surface and the silvery-white surface facing the same direction; a thermistor which is accommodated in the casing and is configured to measure temperatures of each of the black plate and the silver plate; and a processor configured to calculate a solar radiation heat amount based on a difference between the temperature of the black plate and the temperature of the silver plate, the temperatures being measured by the thermistor.

An optical sensor includes a support film, a thermoelectric conversion material portion, a heat sink, a light absorption film, a first electrode, and a second electrode. The thermoelectric conversion material portion includes a plurality of first material layers and a plurality of second material layers. The support film includes a first layer arranged on the heat sink side in a thickness direction and configured with a phononic structure having a large number of holes, and an insulating second layer arranged on the first layer and in contact with the thermoelectric conversion material portion.

In an example, an apparatus is described that includes a non-resistive heat source, a thermally conductive face, and a temperature detector. The thermally conductive face has a controlled long-wave infrared emissivity and is in thermal contact with the non-resistive heat source. The temperature detector is positioned to detect a temperature of the thermally conductive face.

The present disclosure provides a sensing device including a substrate and a sensing pixel. The sensing pixel is disposed on the substrate and includes an electrode and a thermistor. The thermistor is electrically connected to the electrode and is separated from the substrate by an air gap. When the sensing pixel is operated in a period, the electrode receives a voltage, and a part of the thermistor moves toward the substrate, such that the thermistor is in thermal conduction with the substrate.

To provide an infrared sensor that allows heat to be efficiently transferred from an insulating film to a heat sensitive element and has a good responsivity. The infrared sensor according to the present invention includes an insulating film 2; a pair of first adhesive electrodes 3A that is patterned on either surface of the insulating film; a pair of first terminal electrodes 4A that is patterned on either surface of the insulating film; a first heat sensitive element 5A that is provided on either surface of the insulating film and is connected to the pair of first adhesive electrodes; a pair of first pattern wiring parts 6A that is patterned on either surface of the insulating film with one end thereof being connected to the pair of first adhesive electrodes and the other end thereof being connected to the pair of first terminal electrodes; and a heat transfer film 7.