Advanced optical detectors and imagers

在接下来的5年里，我们将致力于针对健康和环境科学新兴应用的先进光电探测器和成像器的积极研究计划。这项研究将大大扩展我们的研究专业知识和前沿成果，以建模，设计，制造和表征低成本光电探测器和成像器，这些光电探测器和成像器使用创新的器件设计，电路和系统，以及化合物半导体材料中新兴的光电探测器结构。我们将利用我们在光电探测器设计和集成电路方面的研究专长，为低成本、小型化的生物医学和环境分析系统创建完全集成的硅基和混合化合物光电探测器光学检测系统。我们建议的研究将是，-建模和优化设计的“铸造为基础的”高性能，光电探测器，像素，数字集成电路和集成成像的应用，包括早期疾病检测使用正电子发射断层扫描，功能性脑成像或荧光寿命成像，和水质监测使用时间选通拉曼光谱;- 缓解降低先进光电探测器和成像器性能的挑战性问题，如噪声、后脉冲、抖动或定时分辨率;精确的校准模型，用于预测先进量子点红外光电探测器结构的静态和动态特性，以及用于中红外生物和化学传感应用的它们的优化设计和制造。 所提出的研究的新奇和影响包括高性能硅光电探测器和成像器的建模和优化设计，这些光电探测器和成像器具有定制的性能特性，可以在第一次尝试时成功制造，从而节省时间和金钱;以及计算效率高，精确建模和制造基于量子的光电探测器。这项研究非常重要，因为它针对的是健康和环境科学方面的高影响力，新兴的国家需求。这也将有助于保持我们在先进的光电探测器和成像器的领导地位。

Over the next 5 years, we will pursue an aggressive research program on advanced photodetectors and imagers targeted to emerging applications in health and environmental sciences. This research will significantly extend our research expertise and leading-edge results to model, design, fabricate and characterize low-cost photodetectors and imagers that use innovative device designs, circuits and systems, as well as emerging photodetector structures in compound semiconductor materials. We will leverage our research expertise in photodetector design and integrated circuits to create fully integrated silicon-based and hybrid compound semiconductor-based optical detection systems for low-cost, miniaturized biomedical and environmental analytical systems. Our proposed research will be, - Modeling and optimized design of "foundry-based" high-performance, photodetectors, pixels, digital integrated circuits and integrated imagers for applications including early disease detection using positron emission tomography, functional brain imaging or fluorescent lifetime imaging, and water quality monitoring using time-gated Raman spectroscopy; - Mitigation of challenging issues that degrade the performance of advanced photodetectors and imagers such as noise, afterpulsing, jitter or timing resolution; and - Accurate, calibrated models to predict the static and dynamic characteristics of advanced quantum dot infrared photodetector structures, and their optimized design and fabrication for mid-infrared biological and chemical sensing applications. The novelty and impact of the proposed research include the modeling and optimized design of high-performance silicon photodetectors and imagers with tailored performance characteristics that can be successfully manufactured at first attempt, thus saving both time and money; and computationally efficient, accurate modeling and manufacture of quantum-based photodetectors. The research is highly significant because it targets high-impact, emerging national needs in health and environmental sciences. It would also help to maintain our leadership position in advanced photodetectors and imagers.