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Showing 1 to 10 of 10 for “"Microbolometer"”.
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Investigation of thermal electric cooler-less microbolometer infrared imaging
… Focal Plane Array (FPA). An FPA is an array of microbolometers which are small vanadium oxide elements whose resistances are very sensitive to IR radiation. The ability to run an imaging module without the TEC results in significant reduction in FPA package size, power consumption and module …
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Use of Ion Implantation in the Construction of an Uncooled Microbolometer
Uncooled infrared (IR) bolometers have been constructed using a sensor bridge made of an electrically conductive polymer attached to a quartz substrate. The bridge is mounted on two sides and crosses an etched trough in the underlying substrate. Current is supplied to the bridge by means of two …
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INFRARED SENSORS USING SILICON MICROSTRUCTURES
… detector as an IR imager. Recent development of microbolometer detectors enables the fabrication of uncooled imagers at a relatively low cost. In this work, infrared detectors using microbolometers are fabricated by silicon micromachining. The microbolometer detects IR radiation by sensing the …
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Methods to achieve wavelength selectivity in infrared microbolometers and reduced thermal mass microbolometers
… and the speed of thermal response for microbolometers. These patterned resistive sheets and Modified dielectric coated Salisbury Screen are a modified form of classical Salisbury Screens that utilize a resistive absorber layer placed a quarter-wavelength in front of a mirror. These …
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Polarization-dependent wavelength-selective structures for multispectral polarimetric infrared imaging
… metallic-grating structure, compatible with CMOS microbolometer detector technology is also offered as an application example.
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Aluminum nitride microelectromechanical infrared detectors with integrated metamaterial absorbers
… matching the state of the art TCR values of microbolometers which are typically 3-5%. Future optimization of device structure and fabrication can further increase the TCΓ value, showing promise for surpassing current microbolometer FPAs.
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Vanadium Oxide Microbolometers with Patterned Gold Black or Plasmonic Resonant Absorbers
High sensitivity uncooled microbolometers are necessary to meet the needs of the next generation of infrared detectors, which seek low power consumption and production cost without sacrificing performance. Presented here is the design, fabrication, and characterization of a microbolometer with …
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Advances in Radiation Heat Transfer and Applied Optics, Including Application of Machine Learning
… of interest. Absorbed power distributions on a microbolometer array making up the imager is produced by discretized scenes using a high-fidelity Monte Carlo ray-trace model. The resulting readout array/scene pairs are then used to train an inverse ANN. It is demonstrated that a properly trained …
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Scalable 3D carbon nanotube structures for bolometric infrared sensor arrays
… in one element. A common structure for a microbolometer is a thin suspended bridge connected to the substrate via small legs, which is advantageous as the thermal mass is minimized, and there is a small thermal link to the substrate. Previous CNT bolometer literature studies focused on …
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Electronic, thermoelectric and optical properties of vanadium oxides: VO2, V2O3 and V2O5
… from O2p to V3d states. In the Honeywell microbolometer structure, the bolometer sensing element has been chosen to be VO_x, with x equal to 1.8, along with other layers of Si_3N_4, air, Al and Si. The room temperature spectral emissivity of such a layered structure is analyzed using …