SBIR Phase I: High Performance Thermal Imaging for Nondestructive Testing

SBIR 第一阶段：用于无损检测的高性能热成像

• 批准号: 9760645
• 负责人: Peter Chow
• 金额: $ 9.99万
• 依托单位: SVT ASSOCIATES, INCORPORATED
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9760645&HistoricalAwards=false
• 关键词: SBIR; Phase; Performance; Thermal; Imaging

*** 9760645 Chow This Small Business Innovative Research (SBIR) Phase I project utilizes bandgap-engineered photon detection for high performance ambient temperature thermal imaging for a variety of industrial applications such as nondestructive testing, quality control, and process optimization. Although thermal detectors such as micro-bolometers have seen rapid progress in performance and cost reduction, they are limited by low detectivity, sluggish response time, and spectral non-specifivity. Fast IR imaging is difficult to achieve. Indium arsenic antimonide (InAs1-xSbx), grown by molecular beam epitaxy, , will be used as the basic photodiode material. The design suppresses Auger noise to achieve much higher detectivity. In similar material systems high detectivity has been found that is greater than commercial thermal detectors by an order of magnitude. Phase I will emphasize material fabrication and feasibility demonstration of uncooled operation. Phase II would optimize the device structure and fabricate two-dimensional imaging arrays. Uncooled IR imaging arrays are expected to have commercial applications in nondestructive testing, medical diagnostics, industrial process control, navigation, and pollution monitoring. Reduced fabrication and operating costs may expand commercial markets significantly. ***

*9760645 Chow这个小型企业创新研究(SBIR)第一阶段项目利用带隙工程光子检测来实现高性能的环境温度热成像，用于各种工业应用，如无损检测、质量控制和工艺优化。虽然微测辐射热计等热探测器在性能和成本方面取得了快速的进步，但它们受到探测率低、响应时间慢和光谱非专一性的限制。红外成像的快速性很难实现。分子束外延生长的InAs1-xSbx(InAs1-xSbx)将作为基本的光电二极管材料。该设计抑制了俄歇噪声，实现了更高的探测率。在类似的材料系统中，已经发现了比商用热探测器高一个数量级的高探测率。第一阶段将侧重于材料制造和非制冷运行的可行性论证。第二阶段将优化器件结构并制造二维成像阵列。非制冷红外成像阵列有望在无损检测、医疗诊断、工业过程控制、导航和污染监测等方面有商业应用。降低制造和运营成本可能会显著扩大商业市场。***