Short-wave Infrared Single Photon Detection With Linear Mode Avalanche Photodiode

使用线性模式雪崩光电二极管进行短波红外单光子检测

• 批准号: EP/Y020855/1
• 负责人: Xin Yi
• 金额: $ 45.88万
• 依托单位: Heriot-Watt University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY020855%2F1
• 关键词: Short; wave; Infrared; Single; Photon

The advantage of single photon detectors is that they can be used for enhanced imaging, secure communication and powerful computing. These have the potential to transform how we live, work and interact with the world, for example, having unbreakable encrypted telecommunications by quantum key distribution, enabling LiDAR systems and environmental gas sensing by time-correlated single photon counting. Detecting an individual quantum of light (a single photon) provides you with the ultimate sensitivity. The ideal detector needs to have an extremely high detection efficiency at all short-wave infrared (SWIR) wavelengths, very low noise, high speed, excellent timing resolution, user-friendly, low cost and be capable of use at room temperature.Although there are several available SWIR detectors, a detector that fulfils all these requirements does not exist yet. Recently, using novel III-V materials and band structure engineered structures, we have seen a paradigm shift in the performance of SWIR detectors. In this project, we aim to design and fabricate novel extremely low excess noise InP-based linear mode-avalanche photodiodes capable of detecting single photons, and evaluate them in several emerging applications. This new class of quantum detector will outperform the existing devices, and their demonstration would open new opportunities for emerging applications in areas such as national security and climate change challenges.

单光子检测器的优点是它们可用于增强成像，安全的通信和强大的计算。这些有可能改变我们的生活，工作和与世界互动的方式，例如，通过量子密钥分布具有无法破坏的加密电信，从而通过时间相关的单光子计数使LIDAR系统和环境气体传感。检测单个量子的光（单个光子）为您提供最终灵敏度。理想的检测器需要在所有短波红外（SWIR）波长，非常低的噪声，高速，出色的计时分辨率，用户友好，低成本，低成本且能够在室温下使用时具有极高的检测效率。最近，使用新颖的III-V材料和带结构工程结构，我们看到了SWIR探测器的性能范式转移。在这个项目中，我们旨在设计和制造新型的极低噪声INP基于INP的线性模式 - avalanche光电二极管，能够检测单个光子，并在几个新兴应用中进行评估。这类新的量子检测器将胜过现有设备，它们的演示将为国家安全和气候变化挑战等领域的新兴应用程序打开新的机会。