AI 中文总结
本文提出一种紧凑电路模型框架，用于快速可扩展地仿真纳米天线光波电子器件，在LTspice中实现并验证，将电磁分析从小时级加速至秒级，支持大规模集成系统分析。
AI 中文摘要
随着纳米尺度光波电子学领域从围绕基础科学成熟转向聚焦器件工程，日益需要能够对太赫兹频率光场驱动电子器件性能进行快速且可扩展定量分析的紧凑模型。在本工作中，我们开发了一个用于描述纳米尺度光波电子学的电路模型框架。我们的框架通过紧凑电路模型捕捉控制纳米尺度光学器件（如电连接纳米天线）的物理机制，预测其电磁响应、电子发射和电荷转移动力学。该方法能够对包含纳米尺度光波电子组件网络的大型集成系统进行可扩展仿真，而这在全波电磁和粒子网格仿真方法中是不可能的。我们在一个免费商业电路求解器（LTspice）中实现了该紧凑模型，并针对全波电磁求解器（MEEP）验证了其电磁响应。我们提出了一项实验，以全面基准测试该模型捕捉器件间基于非线性电荷转移耦合的能力。电路模型实现将电磁分析从数小时加速至数秒，并考虑了电荷驱动耦合，使得能够快速进行器件操作的定量研究，为飞秒信号如何通过纳米尺度光波电子结构传播提供新见解。我们预期，我们在此引入的方法将成为纳米尺度光波电子学在光频通信、计算和信号处理领域发展与性能分析的关键。
英文摘要
As the field of nanoscale lightwave electronics matures from centering around fundamental science to focusing on device engineering, there is a growing need for compact models that can provide rapid and scalable quantitative analysis of the performance of petahertz-frequency optical-field-driven electronics. In this work, we developed a circuit model framework for describing nano-scale lightwave electronics. Our framework captures the physics governing nanoscale optical devices, such as electrically-connected nanoantennas, using compact circuit models that predict their electromagnetic response, their electron emission, and their charge transfer dynamics. This approach allows scalable simulation of large integrated systems containing networks of nanoscale lightwave electronic components, which is not possible using full-wave electromagnetic and particle-in-cell simulation methods. We implemented the compact model in an free commercial circuit solver (LTspice) and validated its electromagnetic response against a full-wave electromagnetic solver (MEEP). We propose an experiment to fully benchmark the model's ability to capture non-linear charge-transfer-based coupling between devices. The circuit model implementation speeds up the electromagnetic analysis from hours to seconds and accounts for charge-driven coupling, enabling rapid quantitative studies of device operation which provide new insights into how femtosecond signals propagate through nanoscale lightwave electronic structures. We anticipate that the methods we introduce here will become essential to the development and performance analysis of nanoscale lightwave electronics for communication, computation, and signal processing at optical frequencies.
CommentsMain text: 41 pages including references, 8 figures. Appendix: 23 pages, 5 figures
