Germanium-Tin Single-Photon Avalanche Diodes Detectors for Imaging and Sensing Applications

用于成像和传感应用的锗锡单光子雪崩二极管探测器

• 批准号: 2605774
• 金额: --
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2605774
• 关键词: Germanium; Tin; Single; Photon; Avalanche

Single photon avalanche diodes (SPADs) are devices that can precisely time the arrival of single photons of light. SPADs operating in the short-wave infrared (SWIR) have numerous applications including 3D imaging (e.g. for autonomous vehicle LIDAR) and in remote sensing of pollutants such as methane. Current state-of-the-art technology is expensive and is limited to low repetition rates. This project will develop SWIR SPADs which are compatible with fabrication using ubiquitous Si foundries, making them suitable for mass manufacturing at low cost. This can be achieved by extending the absorption of standard Si SPADs with an absorbing material based on GeSn alloys. The student will be designing, fabricating and characterising such GeSn-on-Si SPADs, which have the real potential to be a disruptive technology, enabling long range LIDAR imaging and sensing systems at a fraction of the cost of currently available technology.

单光子雪崩二极管（SPAD）是一种可以精确计时光的单光子到达的器件。在短波红外（SWIR）中操作的SPAD具有许多应用，包括3D成像（例如用于自主车辆LIDAR）和污染物（例如甲烷）的遥感。目前最先进的技术是昂贵的，并限于低重复率。该项目将开发SWIR SPAD，其与使用普遍存在的Si铸造厂的制造兼容，使其适合于低成本的大规模制造。这可以通过使用基于GeSn合金的吸收材料扩展标准Si SPAD的吸收来实现。学生将设计，制造和表征这种GeSn-on-Si SPAD，它具有真实的潜力成为一种颠覆性技术，使远程LIDAR成像和传感系统的成本仅为目前可用技术的一小部分。