Materials and components for photonic neural networks

光子神经网络的材料和组件

• 批准号: 2448072
• 金额: --
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2448072
• 关键词: Materials; components; photonic; neural; networks

Recently the academic team in this project has pioneered a new family of ultra-low loss reversible phase change materials (PCMs) for photonic integrated circuits based on Sb2Se3. This material shows a two orders of magnitude improvement in the figure of merit (switching contrast over the losses) compared to the conventional phase change material GST. Therefore, integration of these PCMs in nanophotonic devices will allow unprecedented optical phase control with many new emerging applications in programmable and rewritable optical circuits, optical signal processing and memories, neural networks, and interfacing quantum sources for quantum technology.This project is aimed at exploring a range of new applications that are enabled by the unique combination of material properties and optical (and possible electrical) switching of its phase. The focus of these studies is directed at the integration of the new PCMs in silicon photonic integrated circuits, which can further expanded to include plasmonic and resonant nanophotonic devices on the chip. The main body of the PhD work will involve fabrication of devices using the ZI advanced glass deposition and clean room facilities for nanofabrication, performing advanced optical studies using state of the art equipment for silicon waveguide testing and optically induced phase switching, and theoretical/numerical modelling of devices using commercial software (FDTD, Comsol) and other methods (Matlab, Python). The student will engage actively with all the different aspects of the work and will be supervised by a team of experts in the different areas of study.

最近，该项目的学术团队开创了一种新的基于Sb2Se3的光子集成电路用超低损耗可逆相变材料(PCM)家族。与传统的相变材料GST相比，这种材料在品质因数(开关对比度超过损耗)方面有两个数量级的改善。因此，将这些相变材料集成到纳米光子器件中将实现前所未有的光学相位控制，并在可编程和可重写光学电路、光信号处理和存储器、神经网络以及量子技术的接口量子源等方面有许多新的应用。该项目旨在探索一系列新的应用，这些应用是通过材料特性和光学(以及可能的电)位相切换的独特组合来实现的。这些研究的重点是新型相变材料在硅光子集成电路中的集成，这种集成可以进一步扩展到包括芯片上的等离子体和共振纳米光子器件。博士工作的主体将涉及使用Zi先进的玻璃沉积和用于纳米制造的洁净室设施来制造器件，使用最先进的设备进行先进的光学研究，用于硅波导测试和光学诱导相位切换，以及使用商业软件(FDTD，COMSOL)和其他方法(MatLab，PYTHON)对器件进行理论/数值建模。学生将积极参与工作的所有不同方面，并将由不同研究领域的专家团队进行监督。