Advanced optical detectors and imagers

在接下来的5年里，我们将继续积极开展先进光电探测器和成像仪的研究计划，目标是在健康和环境科学中的新兴应用。这项研究将极大地扩展我们的研究专业知识和前沿成果，以建模、设计、制造和表征使用创新器件设计、电路和系统的低成本光电探测器和成像器，以及化合物半导体材料中的新兴光电探测器结构。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业知识，为低成本、小型化的生物医学和环境分析系统创造完全集成的硅基和混合化合物半导体光学检测系统。我们拟议的研究将是，-为包括使用正电子发射断层扫描技术的早期疾病检测、脑功能成像或荧光寿命成像以及使用时间门控拉曼光谱的水质监测等应用，建模和优化设计“基于铸造厂”的高性能光电探测器、像素、数字集成电路和集成成像器；-缓解降低先进光电探测器和成像仪性能的挑战性问题，例如噪声、后脉冲、抖动或定时分辨率；以及-准确、校准的模型，以预测先进量子点红外光电探测器结构的静态和动态特性，并针对中红外生物和化学传感应用优化设计和制造。

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.