Extended Wavelength Ge-on-Si Single-photon Avalanche Diode Detectors

扩展波长硅基硅单光子雪崩二极管探测器

• 批准号: 2906463
• 金额: --
• 依托单位: Heriot-Watt University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2906463
• 关键词: Extended; Wavelength; Ge; Si; Single

This is a PhD research project in Physics. Single--photon detectors are the key components behind many of the new and emerging photonic technologies. Single--photon detection at visible and near infrared wavelengths (in the range 400 to 1060 nm) based on silicon is a relatively mature technology with several efficient devices commercially available but single-photon detectors for longer wavelengths are still largely experimental. The inclusion of germanium absorber layers gives the opportunity to extend the wavelength range to greater than 1550nm wavelength fpr compatibility with low loss optical fibre windows. Such detectors are capable of detecting photons with wavelengths that lie in certain atmospheric transmission windows, as well as infrared gas absorption features, notably those of greenhouse gas. This PhD will examine the incorporation of Sn into the Ge absorber in order to extend the wavelength range to 2000nm wavelength.

这是物理学博士研究项目。单孔检测器是许多新的和新兴的光子技术背后的关键组成部分。基于硅的可见和近红外波长（在400至1060 nm的范围内）是一种相对成熟的技术，具有商业上可用的几种有效设备，但对于更长的波长而言，仍然很大程度上实验性的实验性。包含锗吸收层层，有机会将波长范围扩展到大于1550nm波长的FPR兼容性与低损耗光纤窗户的兼容性。此类探测器能够检测具有位于某些大气变速箱窗口的波长以及红外气体吸收特征，尤其是温室气体的光子。该博士将检查SN在GE吸收器中的掺入，以将波长范围扩展到2000nm波长。