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Journal articles on the topic 'Focal-plane-array (FPA) technology'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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1

Cintron, Michael Santiago, Terri Von Hoven, Krystal Fontenot, Rebecca Hron, and Doug J. Hinchliffe. "Examintaion of Fabric Chemical Treatment Uniformity using a Mid-IR Focal Plane Array Detector." AATCC Journal of Research 6, no. 3 (2019): 1–7. http://dx.doi.org/10.14504/ajr.6.3.1.

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A macro sampling chamber equipped with mid-infrared (IR) focal plane array (FPA) detector was used to examine chemical treatments of cotton fabrics. Conventional IR methods typically examine individual points in a sample, while the FPA detector provides spatially resolved spectra that can corroborate chemical treatment and its distribution on the cotton fabric. Characterizations of three distinct treatments are presented: non-durable treatments of N, N-diethyl-3-methylbenzamide (DEET), an active ingredient in commercially available insect repellents, a phosphazine-based fire retardant, and fab
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2

Ting, David Z., Sir B. Rafol, Arezou Khoshakhlagh, et al. "InAs/InAsSb Type-II Strained-Layer Superlattice Infrared Photodetectors." Micromachines 11, no. 11 (2020): 958. http://dx.doi.org/10.3390/mi11110958.

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The InAs/InAsSb (Gallium-free) type-II strained-layer superlattice (T2SLS) has emerged in the last decade as a viable infrared detector material with a continuously adjustable band gap capable of accommodating detector cutoff wavelengths ranging from 4 to 15 µm and beyond. When coupled with the unipolar barrier infrared detector architecture, the InAs/InAsSb T2SLS mid-wavelength infrared (MWIR) focal plane array (FPA) has demonstrated a significantly higher operating temperature than InSb FPA, a major incumbent technology. In this brief review paper, we describe the emergence of the InAs/InAsS
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3

Treado, Patrick J., Ira W. Levin, and E. Neil Lewis. "Indium Antimonide (InSb) Focal Plane Array (FPA) Detection for Near-Infrared Imaging Microscopy." Applied Spectroscopy 48, no. 5 (1994): 607–15. http://dx.doi.org/10.1366/0003702944924899.

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Near-infrared spectroscopy is a sensitive, noninvasive method for chemical analyses, and its integration with imaging technologies represents a potent tool for the study of a wide range of materials. In this communication the use of an indium antimonide (InSb) multichannel imaging detector for near-infrared absorption spectroscopic microscopy is described. In particular, a 128 × 128 pixel InSb staring array camera has been combined with a refractive optical microscope and an acousto-optic tunable filter (AOTF) to display chemically discriminative, spatially resolved, vibrational spectroscopic
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4

Cintron, Michael Santiago, Terri Von Hoven, Doug J. Hinchliffe, and Rebecca Hron. "Examination of Cotton Maturity and Maturity Distribution Using an Infrared Focal Plane Array Imaging System." AATCC Journal of Research 8, no. 1 (2021): 14–24. http://dx.doi.org/10.14504/ajr.8.1.3.

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Cotton maturity describes the thickness of the cotton secondary cell wall. There is a need for developing non-destructive methods for measuring maturity that also examine distribution. The current study seeks to expand reported infrared (IR)-based maturity determinations using an IR imaging system with a focal-plane array (FPA) detector. Adapted equations were used to examine the maturity of cotton standards and of a larger set of upland cotton varieties (30 total). Maturity values obtained with a Cottonscope and from IR determinations showed strong linearity, R2 = 0.95, while contour plots pr
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5

Bajenescu, Titu-Marius I. "INFRARED DETECTORS." Journal of Engineering Science XXV (3) (November 15, 2018): 29–40. https://doi.org/10.5281/zenodo.2557317.

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Infrared detectors have wide application in a range of industry sectors, including defence, astronomy, medicine, environmental safety, and remote sensing. The applications requiring the highest sensitivity over a broad spectrum of wavelengths are usually based on the high performance mercury cadmium telluride (HgCdTe) ternary alloy, since HgCdTe-based detector performance dominates others in the mid-wave and long-wave infrared spectrum. HgCdTe is the dominant material currently in use for infrared (IR) focal-plane-array (FPA) technology. The subject is vast: IR systems combine a wide variety o
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6

Lu, Di, Wenchang Li, Jian Liu, Gang Chen, and Zhigang Li. "Design of a Configurable Spike-Encoding Circuit Based on Focal Plane Array." Applied Sciences 13, no. 18 (2023): 10092. http://dx.doi.org/10.3390/app131810092.

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Spiking neural networks inspired by biological models are gaining popularity in artificial intelligence due to their ability to solve diverse problems while reducing energy consumption. As a result of the trade-off between the need to transmit large amounts of data and the power consumption of hardware deployment, artificial vision systems are particularly well-suited to construction using spiking neural networks (SNNs). How to communicate with the neuromorphic network effectively is one of the challenges associated with building systems that utilize SNN systems. It is necessary to convert the
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7

Yang, Bo, Yizhen Yu, Guixue Zhang, Xiumei Shao, and Xue Li. "Design and Fabrication of Broadband InGaAs Detectors Integrated with Nanostructures." Sensors 23, no. 14 (2023): 6556. http://dx.doi.org/10.3390/s23146556.

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A visible–extended shortwave infrared indium gallium arsenide (InGaAs) focal plane array (FPA) detector is the ideal choice for reducing the size, weight and power (SWaP) of infrared imaging systems, especially in low-light night vision and other fields that require simultaneous visible and near-infrared light detection. However, the lower quantum efficiency in the visible band has limited the extensive application of the visible–extended InGaAs FPA. Recently, a novel optical metasurface has been considered a solution for a high-performance semiconductor photoelectric device due to its highly
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8

Li, Mai. "Systematic analysis of New Technologies and trends of infrared photodetectors." Highlights in Science, Engineering and Technology 121 (December 24, 2024): 281–90. https://doi.org/10.54097/d8aapv57.

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Infrared detection has always been regarded as an important technology with significant applications in military, industrial, and daily life. Infrared photodetectors (IRPDs) have experienced the development process from thermal IRPDs to photonic IRPDs, until now, the latter can be widely used in focal plane array (FPA). For a long time, IRPD technology based on HgCdTe and InSb materials has dominated the market, but there are still limitations in operating temperature and detectable wavelength region. Since the 21st century, people have been committed to researching new types of IRPDs. Type-II
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9

Shen, Qiying, Yongsheng Liu, Ren Chen, et al. "The Atmospheric Vertical Detection of Large Area Regions Based on Interference Signal Denoising of Weighted Adaptive Kalman Filter." Sensors 22, no. 22 (2022): 8724. http://dx.doi.org/10.3390/s22228724.

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In comparison with traditional space infrared spectroscopy technology, the interference signals of a large focal plane array (FPA) can be used to obtain spectra over a larger area range and rapidly achieve large-scale coverage of hyperspectral remote sensing. However, the low signal-to-noise ratio of the interference signals limits the application of spectral data, especially when atmospheric detection occurs in the long-wavelength infrared (LWIR) band. In this paper, we construct an LWIR hyperspectral system of a Fourier transform spectrometer composed of a HgCdTe photovoltaic IR FPA and a Mi
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10

Simon, Márta, Nikki van Alst, and Jes Vollertsen. "Quantification of microplastic mass and removal rates at wastewater treatment plants applying Focal Plane Array (FPA)-based Fourier Transform Infrared (FT-IR) imaging." Water Research 142 (October 2018): 1–9. http://dx.doi.org/10.1016/j.watres.2018.05.019.

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11

Bhargava, Rohit, Bentley G. Wall, and Jack L. Koenig. "Comparison of the FT-IR Mapping and Imaging Techniques Applied to Polymeric Systems." Applied Spectroscopy 54, no. 4 (2000): 470–79. http://dx.doi.org/10.1366/0003702001949870.

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Two Fourier transform infrared (FT-IR) spectrometers with microspectroscopic capabilities—one equipped with a focal plane array (FPA) mercury-cadmium-telluride (MCT) detector (imaging) and the other a single-element MCT detector (mapping)—are compared. Two samples, a one-dimensional diffusion system and a two-dimensional phase-separated system, were studied with both analytical tools. Diffusion regions and concentration gradients were determined in the diffusion sample. Phase-specific chemical composition data were obtained in the phase-separated sample. The utility of each instrument for spec
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12

Olesen, Stephansen, Alst, and Vollertsen. "Microplastics in a Stormwater Pond." Water 11, no. 7 (2019): 1466. http://dx.doi.org/10.3390/w11071466.

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Large amounts of microplastics (MPs) enter our environment through runoff from urban areas. This study presents results for MPs in stormwater from a wet retention pond in terms of its water, sediments, and vertebrate fauna. The analysis was done for the size range 10–500 μm, applying a focal-plane array-based µFourier transform infrared (FPA-µFTIR) imaging technique with automated data analysis. Sample preparation protocols were optimized towards this analytical method. The study revealed 270 item L−1 in the pond water, corresponding to 4.2 µg L−1. The MPs in the pond were highly concentrated
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13

Kelly, Michael A., James L. Carr, Dong L. Wu, Arnold C. Goldberg, Ivan Papusha, and Renee T. Meinhold. "Compact Midwave Imaging System: Results from an Airborne Demonstration." Remote Sensing 14, no. 4 (2022): 834. http://dx.doi.org/10.3390/rs14040834.

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The Compact Midwave Imaging System (CMIS) is a wide field of view, multi-angle, multi-spectral pushframe imager that relies on the forward motion of the satellite to create a two-dimensional (2D) image swath. An airborne demonstration of CMIS was successfully completed in January–February 2021 on the NASA Langley Research Center Gulfstream III. The primary objective of the four-flight campaign was to demonstrate the capability of this unique instrument to perform stereo observations of clouds and other particulates (e.g., smoke) in the atmosphere. It is shown that the midwave infrared (MWIR) s
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14

Liu, Huipeng, Ning Li, and Xiaohao Zhou. "Design of enhanced broadband optical couplers for long-infrared quantum well infrared photodetectors." Journal of Applied Physics 137, no. 3 (2025). https://doi.org/10.1063/5.0242443.

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Quantum-well infrared photodetectors (QWIPs) have emerged as a promising technology for broadband detection, particularly used in highly uniform large area focal plane array (FPA) imaging systems. However, one of the main challenges for broadband QWIPs is to design broadband optical couplers. In this paper, we propose a broadband optical scheme suited for the long-wavelength infrared quantum-well (QW) active layers. Our design features a multiple-stairstep reflection grating, which operates as a resonant waveguide in conjunction with the semiconductor layers. Surface plasmon polariton and tran
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15

Nesher, O., and P. Klipstein. "High-performance IR detectors at SCD present and future." Opto-Electronics Review 14, no. 1 (2006). http://dx.doi.org/10.2478/s11772-006-0009-x.

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AbstractFor over 27 years, SCD has been manufacturing and developing a wide range of high performance infrared detectors, designed to operate in either the mid-wave (MWIR) or the long-wave (LWIR) atmospheric windows. These detectors have been integrated successfully into many different types of system including missile seekers, time delay integration scanning systems, hand-held cameras, missile warning systems and many others. SCD’s technology for the MWIR wavelength range is based on its well established 2D arrays of InSb photodiodes. The arrays are flip-chip bonded to SCD’s analogue or digit
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16

Jia, Chunyang, Gongrong Deng, Lining Liu, et al. "Antimonide-based High Operating Temperature Infrared Photodetectors and Focal Plane Arrays: A Review and Outlook." Journal of Physics D: Applied Physics, June 16, 2023. http://dx.doi.org/10.1088/1361-6463/acdefa.

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Abstract Reduction in the size, weight, and power consumption of an infrared (IR) detection system (referred to as SWaP) is one of the critical challenges lying ahead for the development of nowadays IR detector technology, especially for Mid-/Long-wavelength IR wavebands, which calls for high operating temperature (HOT) IR photodetectors with good sensitivity that would ease the burden for the cooling systems. Emerging as strong competitors to HgCdTe detectors, antimonide (Sb)-based IR photodetectors and focal plane array (FPA) imagers have gradually stepped into real world applications after
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