Engineered nanophotonic Raman amplifiers and lasers

工程纳米光子拉曼放大器和激光器

• 批准号: 1606898
• 负责人: Robert Magnusson
• 金额: $ 37万
• 依托单位: University of Texas at Arlington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-08-01 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1606898&HistoricalAwards=false
• 关键词: Engineered; nanophotonic; Raman; amplifiers; lasers

Abstract title: Engineered nanoscale optical amplifiers and lasers Nontechnical:Silicon photonics is presently among the most active fields of research and development in optical science and technology. Importantly, silicon photonics is compatible with modern electronics technology on which everyday integrated circuit chips for computers and communications are based. Motivating this project, there is a need for useful and economic means for silicon-based light generation for silicon photonics technology. We plan to fill this void by engaging a unique optical resonance effect on nanostructured silicon films to generate light. Thus, we propose to develop new active devices, namely lasers and amplifiers, enabled by this fundamental effect. This can lead to new types of lasers serving as sources for silicon photonic chips as well as amplifiers for enhanced detection of incoming signals carried by light pulses as used in internet data transmission. Integrated photonic systems are expected to increase transmission and processing rates in optical communications. Under the project, we will evaluate the utility of fundamental photonic resonance effects, thus far not applied for this purpose, to enable advanced light generation in silicon. The project provides excellent analytical and experimental experience for graduate students thus supporting the development of the next-generation workforce in photonics technology. If successful, the project will led to innovative light generation and amplification concepts with substantial economic benefits and societal value. Technical:The objective of this research is to design, fabricate and characterize a new class of active nanophotonic guided-mode resonance elements. Specifically, we will investigate Raman amplifiers and lasers enabled by this effect. The research is motivated by the fact that Raman emission can be enhanced to high levels with these high-quality-factor resonance effects that are attainable in nanopatterned silicon films. We present preliminary device designs where the spectral placement of the pump and Raman lasing wavelengths achieves the proper Stokes-Raman shift in silicon. Here, the pump and lasing resonances have large quality factors with corresponding high Raman gain which is dominated by the product of the two factors. These elements will be fashioned as periodic nanostructures in the silicon-on-quartz and the silicon-on-insulator materials systems. We investigate fundamental aspects of the resonance interaction in these devices by computing emission spectra and attendant internal photonic field distributions including local field strengths. The fabricated devices will be characterized by electron-beam and atomic-force microscopy and their detailed spectral properties will be measured. The efficiency of the Stokes-Raman emission, including gain relative to pump, will be quantified relative to device architecture and input pump configuration. This project undertakes fundamental nanophotonic device research that is transformative, if successful, in view of potential applications in silicon photonics.

摘要标题：工程化纳米级光学放大器和激光器非技术：硅光子学是目前光学科学技术中最活跃的研究和开发领域之一。重要的是，硅光子学与计算机和通信的日常集成电路芯片所基于的现代电子技术是兼容的。推动这一项目的是，需要为硅光电子技术提供有用和经济的硅基光产生手段。我们计划通过在纳米结构硅薄膜上引入一种独特的光学共振效应来产生光来填补这一空白。因此，我们建议开发新的有源器件，即激光和放大器，使这一基本效应成为可能。这可以导致新型激光器用作硅光子芯片的源，以及用于增强对因特网数据传输中使用的光脉冲携带的输入信号的检测的放大器。集成光子系统有望提高光通信中的传输和处理速率。根据该项目，我们将评估基本光子共振效应的效用，使先进的光在硅中产生，到目前为止还没有应用于此目的。该项目为研究生提供了极好的分析和实验经验，从而支持了光电子技术下一代劳动力的发展。如果成功，该项目将带来创新的发光和放大概念，具有可观的经济效益和社会价值。技术：本研究的目的是设计、制造和表征一类新型的有源纳米光子导模谐振元件。具体地说，我们将研究这种效应带来的拉曼放大器和激光器。这项研究的动机是这样一个事实，即利用纳米硅薄膜中可以获得的高质量因数共振效应，可以将拉曼发射增强到高水平。我们给出了初步的器件设计，其中泵浦和拉曼激光波长的光谱位置在硅中实现了适当的斯托克斯-拉曼位移。在这里，泵浦和激光谐振具有大的品质因数和相应的高的拉曼增益，这是由这两个因素的乘积决定的。这些元素将在石英上硅和绝缘体上硅材料系统中形成周期性纳米结构。我们通过计算发射光谱和伴随的内部光子场分布(包括局域场强度)来研究这些器件中共振相互作用的基本方面。制作的器件将通过电子束和原子力显微镜进行表征，并将测量其详细的光谱特性。斯托克斯-拉曼发射的效率，包括相对于泵浦的增益，将相对于器件结构和输入泵浦配置而被量化。该项目进行了基本的纳米光子器件研究，鉴于硅光子学的潜在应用，这项研究如果成功，将是变革性的。