摘要:
The invention provides a detector comprising a metamaterial absorber and a micro-bolometer arranged to detect terahertz (THz) radiation. The metamaterial absorber can absorb multiple frequency bands, from the infrared and the THz regions of the electromagnetic spectrum. The detector is scalable to be suitable for use in a focal plane array.The invention also provides a hybrid of a plasmonic filter, e.g. for optical radiation, and a metamaterial absorber for terahertz (and/or infrared) radiation, to create a single material capable of absorbing narrow band terahertz radiation and filtering radiation in another part of the spectrum, e.g. optical radiation. Such material has great potential in future imaging technology where hybridisation can maximise the spectral information density of an optical system.
摘要:
The infrared sensor in accordance with the present invention includes a pyroelectric element, an IC device, and a surface-mounted package. The IC device is configured to process an output signal of the pyroelectric element. The package houses the pyroelectric element and the IC device. The package includes a package body and a package lid configured to transmit infrared rays to be detected by the pyroelectric element, and has electrical conductivity. The package body is provided on its surface with plural recessed parts arranged in tiers. The IC device is mounted on a bottom of the lower recessed part. The package body includes an output wiring configured to electrically connect an output terminal of the IC device to an external connection terminal and a shielding member interposed between the pyroelectric element and the output wiring.
摘要:
An infrared detection unit includes a base carrying an infrared sensor element, and a cap configured to be fitted on the base to surround the infrared sensor element. The cap has a top wall with a window in which a semiconductor lens is fitted to collect an infrared radiation onto the infrared sensor element. The semiconductor optical lens is formed from a semiconductor substrate to have a convex lens and a flange which surround said convex lens. An infrared barrier is formed on the semiconductor lens to block the infrared radiation from passing through the boundary between the circumference of the convex lens and the window. Accordingly, the infrared sensor element can receive only the infrared radiation originating from a detection area intended by the convex lens.
摘要:
In accordance with certain embodiments of the present disclosure, a method for adjusting the spectral detectivity of a thermal detector is described. The method includes coating the light sensitive portion of a thermal detector with a first material to reduce the response of the detector. The first material is coated with a second material that is thermally thin and has spectral absorption characteristics. The second material is coated with a third material that is thermally thick, whereby the spectral absorbance of the second material as filtered by the third material primarily determines the thermal conversion of the thermal detector.
摘要:
Apparatuses, methods, and systems are disclosed to characterize the wear and measure temperature of a surface of a lining of a metallurgical container. Wear characterization is accomplished by a scanning device by making thickness measurements of the lining and surface temperature measurements are made using a two-color pyrometer integrated with the scanning device where surface temperature is measured by correlating a ratio of two light intensities to the surface temperature. A controller controls operation of the scanning device and the two-color pyrometer.
摘要:
In one embodiment, an infrared (IR) sensor module includes an IR sensor assembly, including a substrate, a microbolometer array disposed on an upper surface of the substrate; and a cap disposed on the upper surface of the substrate and hermetically enclosing the microbolometer array. A base is disposed below the substrate, and a heat spreader having a generally planar portion is interposed between a lower surface of the substrate and an upper surface of the base. In some embodiments, the heat spreader can include a material having an anisotropic thermal conductivity, e.g., graphite.
摘要:
An integrated circuit includes a first detection element that detects a temperature of an object based on infrared light reflected from the object and a second detection element that detects an image of the object based on visible light reflected from the object on the same substrate.
摘要:
The invention provides a detector comprising a metamaterial absorber and a micro-bolometer arranged to detect terahertz (THz) radiation. The metamaterial absorber can absorb multiple frequency bands, from the infrared and the THz regions of the electromagnetic spectrum. The detector is scalable to be suitable for use in a focal plane array.The invention also provides a hybrid of a plasmonic filter, e.g. for optical radiation, and a metamaterial absorber for terahertz (and/or infrared) radiation, to create a single material capable of absorbing narrow band terahertz radiation and filtering radiation in another part of the spectrum, e.g. optical radiation. Such material has great potential in future imaging technology where hybridization can maximize the spectral information density of an optical system.
摘要:
A detector arrangement for electromagnetic radiation has at least an absorbing element and a cantilever sensor which are in operational connection with each other, so that the sensor is bendable in response to electromagnetic radiation absorbed by the absorbing element. The arrangement further includes an interferometer for measuring bending of the cantilever sensor. In a method for measuring electromagnetic radiation, electromagnetic radiation is directed on to the absorbing element and thereby bending of the cantilever sensor is caused. Bending of the cantilever sensor is measured with an interferometer. The cantilever sensor can be a door-like flap made of silicon, attached to one side of a frame of silicon.
摘要:
A high-resolution thermopile infrared sensor array having monolithically integrated signal processing and a plurality of parallel signal processing channels for the signals from pixels of a sensor array, and a digital port for the serial output of the pixel signals are provided, wherein the sensor array is located on one or more sensor chips. The thermal piled infrared sensor array possesses low power loss, high integration density and high thermal and geometric resolution. Each signal processing channel (K1 . . . KN) has at least one analogue/digital converter (ADC), and is assigned a memory region in a memory (RAM) for storing the signals from the pixels (SE).