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Two-dimensional focal plane detector arrays for LWIR/VLWIR space and airborne sounding missions

机译：用于LWIR / VLWIR空间和机载探测任务的二维焦平面探测器阵列

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摘要

An increasing need for high-precision atmospheric data especially in the long wavelength infrared (LWIR) and very long wavelength infrared (VLWIR) spectral ranges has arisen in the past years not only for the analysis of climate change and its effect on the earth's ecosystem, but also for weather forecast and atmospheric monitoring purposes.rnSpatially and spectrally resolved atmospheric emission data are advantageously gathered through limb or nadir sounding using an imaging Fourier transform (FT) interferometer with a two-dimensional (2D) high-speed focal plane detector array (FPA).rnIn this paper, AIM reports on its latest results on MCT VLWIR FPAs for Fourier transform infrared sounding applications in the 8-15μm spectral range. The performance of a (112x112) pixel photodiode array with a 40um pixel pitch incorporating extrinsic p-doping for low dark current, a technique for linearity improvement at high photon fluxes, pixel guards, pixel select/de-select, and a (2x2) super-pixel architecture is discussed. The customized read-out integrated circuit (ROIC) supporting integrate while-read (IWR) operation has a buffered direct injection (BDI) input stage and a full well capacity (FWC) of 143 Megaelectrons per super-pixel. It consists of two independently operating halves with two analog video outputs each. The full frame rate is typically 4k frames/sec, making it suitable for use with rapid scan FT infrared spectrometers.rnAt a 55K operating temperature and an ~14.4μm cut-off wavelength, a photo response of 12.1mV/K and a noise equivalent temperature difference of 24.8mK at half well filling are demonstrated for a 286K reference scene. The non-linearity error is <0.5%.
机译：过去几年来，对高精度大气数据的需求不断增长，尤其是在长波长红外（LWIR）和超长波长红外（VLWIR）光谱范围内，不仅是为了分析气候变化及其对地球生态系统的影响，使用具有二维（2D）高速焦平面检测器阵列的成像傅里叶变换（FT）干涉仪，通过肢体或最低点的探测，有利地收集空间和光谱解析的大气排放数据。在本文中，AIM报告了其在8-15μm光谱范围内用于傅立叶变换红外测深应用的MCT VLWIR FPA的最新结果。像素间距为40um的（112x112）像素光电二极管阵列的性能，该像素集成了用于低暗电流的外部p掺杂，在高光子通量下改善线性度的技术，像素保护，像素选择/取消选择和（2x2）讨论了超像素架构。支持集成边读边（IWR）操作的定制读出集成电路（ROIC）具有缓冲的直接注入（BDI）输入级和每个超像素143兆电子的全阱容量（FWC）。它由两个独立工作的半部分组成，每个半部分都有两个模拟视频输出。全帧速率通常为4k帧/秒，使其适用于快速扫描FT红外光谱仪.rn在55K的工作温度和〜14.4μm的截止波长下，光响应为12.1mV / K和噪声等效对于286K参考场景，在半井填充时，温度差为24.8mK。非线性误差<0.5％。

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  • 来源
    《Sensors, systems, and next-generation satellites XIV》|2010年|p.78261H.1-78261H.12|共12页
  • 会议地点 Toulouse(FR)
  • 作者

    S. Hanna; A. Bauer; H. Bitterlich; M. Bruder; L.-D. Haas; et al;

  • 作者单位

    H.-P. Nothaft, T. Schallenberg, A. Weber, J. Wendler, R. Wollrab, J. Ziegler AIM INFRAROT-MODULE GmbH, Theresienstr. 2, 74072 Heilbronn, Germany;

    H.-P. Nothaft, T. Schallenberg, A. Weber, J. Wendler, R. Wollrab, J. Ziegler AIM INFRAROT-MODULE GmbH, Theresienstr. 2, 74072 Heilbronn, Germany;

    H.-P. Nothaft, T. Schallenberg, A. Weber, J. Wendler, R. Wollrab, J. Ziegler AIM INFRAROT-MODULE GmbH, Theresienstr. 2, 74072 Heilbronn, Germany;

    H.-P. Nothaft, T. Schallenberg, A. Weber, J. Wendler, R. Wollrab, J. Ziegler AIM INFRAROT-MODULE GmbH, Theresienstr. 2, 74072 Heilbronn, Germany;

    H.-P. Nothaft, T. Schallenberg, A. Weber, J. Wendler, R. Wollrab, J. Ziegler AIM INFRAROT-MODULE GmbH, Theresienstr. 2, 74072 Heilbronn, Germany;

    et al;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 人造卫星;雷达设备、雷达站;
  • 关键词

    FPA; HgCdTe; MCT; LWIR; VLWIR; infrared; sounding; space;

    机译：FPA； HgCdTe; MCT； LWIR; VLWIR;红外线;听起来空间;

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