Nonlinear optics at the nanoscale: theoretical and computational investigations

纳米尺度的非线性光学：理论和计算研究

• 批准号: RGPIN-2017-06101
• 负责人: Ramunno, Lora
• 金额: $ 2.62万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=686741
• 关键词: Nonlinear; optics; nanoscale; theoretical; computational

The field of nonlinear optics has been intensely investigated since the advent of the laser in the 1960s. It entails the study of strong light interaction with matter, where exotic effects, such one colour of light converting to another colour, can be realized. Ever improving laser technology and fabrication methods have opened the door to nonlinear optics at very small length scales down to a billionth of a meter, called “the nanoscale”, for myriad applications. Underlying these technological developments is a need to understand the details of how light interacts nonlinearly with materials, and how to use that interaction to design processes and devices for further technological advances. ******The overarching, long-term goal of Dr. Ramunno's research program is to use and develop state-of-the-art theoretical and computational techniques to investigate nonlinear optics at the nanoscale, in several research areas in photonics. Over five years, she will train graduate students, who will work with undergraduates and postdoctoral fellows toward the following scientific objectives. The first is to understand how images of cells and tissues are formed using a microscopy based on nonlinear optics, including what are the nanoscale limitations of such imaging, and how these may be overcome for applications such as understanding disease processes and early disease diagnosis. The second objective is to understand the mechanisms underlying laser machining of materials, and how this nonlinear interaction can be controlled to create new technologies, such as nanoscale 3D printing. The third is to design nanoscale devices to engineer the production of light, from the visible up to extreme ultraviolet radiation, for applications including communications, microscopy and laser machining. As the fabrication such nanoscale devices gets ever more precise, down to the one nanometer level, new paradigms of computational modelling are required, and Dr. Ramunno will develop these with her trainees. *** ****Dr. Ramunno has a proven track record in each area, as well as established collaborations with experimental and industrial colleagues. These collaborations, including with world-class researchers at uOttawa, will contribute to the success and impact of the proposed research, and provide unique and varied research and career opportunities to students. This work is made possible by her cutting edge computational tools and access to high performance computers, including the most powerful supercomputer in Canada.**

自1960年代激光前进以来，非线性光学领域已积极研究。它需要研究与物质的强光相互作用的研究，在这种情况下，可以实现外来效应（例如一种光转换为另一种颜色的颜色）。不断改进的激光技术和制造方法为无数米的数十亿米（称为“纳米级”）打开了非线性光学元件的大门，用于众多应用。这些技术发展的基础是需要了解光与材料非线性相互作用的细节，以及如何将交互作用用于设计过程和设备以进行进一步的技术进步。 ***** Ramunno博士研究计划的总体长期目标是使用和开发最先进的理论和计算技术，以调查纳米级的非线性光学技术，在光子学的几个研究领域中。在五年的时间里，她将培训研究生，首先是了解基于非线性光学器件的显微镜形成细胞和组织的图像，包括这种成像的纳米级限制，以及如何克服这些成像的应用程序，例如了解诸如了解疾病过程和早期疾病诊断的应用。第二个目标是了解材料激光加工的基础机制，以及如何控制这种非线性相互作用以创建新技术，例如纳米级3D打印。第三个是设计纳米级设备，以设计从可见光到极端紫外线辐射的光的生产，用于通信，显微镜和激光加工在内的应用。随着这种纳米级设备的制造越来越精确，需要到一个纳米水平，需要新的计算建模范式，Ramunno博士将与受训者一起开发这些范式。 *** **** DR。 Ramunno在每个领域都有良好的记录，并与实验和工业合作建立了合作。这些合作，包括与乌塔瓦的世界一流的研究人员，将有助于拟议研究的成功和影响，并为学生提供独特而多样化的研究和职业机会。她的尖端计算工具和使用高性能计算机（包括加拿大最强大的超级计算机）使这项工作成为可能。**