• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on Infrared Technology and Applications XXVII Apr 16-20, 2001, Orlando, USA >480x8 Hybrid HgCdTe Infrared Focal Plane Arrays
【24h】

480x8 Hybrid HgCdTe Infrared Focal Plane Arrays

机译：480x8混合HgCdTe红外焦平面阵列

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper explains the technologies used for high-performance long linear arrays based on HgCdTe/CMOS hybrid multiplexers with bidirectional Time Delay and Integration (TDI) functions, and it describes the development of the first high-resolution Forward Looking Infrared (FLIR) system with the SXGA format. Long-Wavelength Infrared (LWIR) photodiode arrays are fabricated using liquid-phase epitaxially grown HgCdTe on a CdZnTe substrate. Each photodiode array consists of 480X8-element n+-on-p diodes formed by B+ implantation. Each photodiode is surrounded by a crosswise drain diode to define the detection area. The diodes with a 10.3- μm cutoff wavelength had a typical zero-bias resistance of 10 MΩ and a shunt resistance of 1 GΩ. Four CMOS Read Out Integrated Circuits (ROICs) were used for bidirectional TDI and multiplex operations where each ROIC summed up and multiplexed eight signals from 120 channels. The ROIC also includes pixel deselection and gain control circuits along with the corresponding memory and writing means. The Infrared Focal Plane Arrays (IRFPAs) had a typical Noise Equivalent Temperature Difference (NETD) of 18 mK after TDI with F/1.55 optics and 10- μs integration. The FLIR system using the 480X8 IRFPA demonstrated a high spatial resolution of 1280 horizontal lines by 960 vertical lines (SXGA format) and NETD of less than 30 mK. The unique algorithm for image enhancement was successfully confirmed to be efficient.
机译：本文介绍了基于具有双向时延和积分（TDI）功能的HgCdTe / CMOS混合多路复用器的高性能长线性阵列的技术，并介绍了第一个具有以下功能的高分辨率前视红外（FLIR）系统的开发SXGA格式。使用在CdZnTe衬底上液相外延生长的HgCdTe来制造长波长红外（LWIR）光电二极管阵列。每个光电二极管阵列由通过B +注入形成的480X8元素n + / n-on-p二极管组成。每个光电二极管被横向漏极二极管围绕，以定义检测区域。截止波长为10.3μm的二极管的典型零偏电阻为10MΩ，分流电阻为1GΩ。四个CMOS读出集成电路（ROIC）用于双向TDI和复用操作，其中每个ROIC求和并复用来自120个通道的八个信号。 ROIC还包括像素取消选择和增益控制电路以及相应的存储器和写入装置。红外焦平面阵列（IRFPA）具有F / 1.55光学器件和10μs积分的TDI后，典型的噪声等效温度差（NETD）为18 mK。使用480X8 IRFPA的FLIR系统显示了1280条水平线乘以960条垂直线（SXGA格式）的高空间分辨率，NETD不到30 mK。成功地确认了独特的图像增强算法是有效的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号