Quantum plasmonics with extreme nonlinearities for on-chip supercontinuum generation

用于片上超连续谱生成的具有极端非线性的量子等离子体

基本信息

批准号：
1907423
负责人：
Zhaowei Liu
金额：
$ 36万
依托单位：
University of California-San Diego
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-09-01 至 2023-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1907423&HistoricalAwards=false
关键词：
Quantum plasmonics extreme nonlinearities chip

项目摘要

Nonlinear optics has been a rapidly growing scientific field in recent decades and holds promise for critical applications in optical information processing, telecommunications, and etc. Because the nonlinear coefficients for most materials are typically low, exploring new materials with higher nonlinear responses has always been one of the greatest challenges in this field. As a distinct research field, plasmonics has emerged as a novel approach to manipulate light at nanoscales. Recent advances in nanofabrication enable plasmonic structures at nanometer scales, leading to exceptionally high nonlinear responses due to the quantum size effect. This project aims to combine the field of quantum plasmonics with nonlinear optics to discover new optical materials with extremely high nonlinear responses and to apply such new materials for on-chip supercontinuum generation with an ultra-small footprint. This project involves fundamental science exploration, nano-material design and fabrications, on-chip supercontinuum generation device design and fabrication, and optical characterizations. This research will address fundamental issues at the cross-section of nanoplasmonics and nonlinear optics, and train graduate and undergraduate students in important areas of nanomaterials design and growth, optical characterization, device fabrication, nano-science, and nanotechnology. The transformative goal is to provide the scientific underpinnings of next generation integrated optical components based on engineered nanomaterials with extremely high nonlinearities. Research-based curriculum development, web-based dissemination of research results, journal publications and conference/workshop presentations, will impact more students including those at the pre-college level. Technical description. This project addresses a new way to create strong nonlinear responses in a quantum engineered system and how to use it to build an ultra-compact supercontinuum generation device. The nonlinear optical properties of metal quantum wells will be systematically investigated. A dynamic quantum electrostatic model will be developed to accurately describe and predict the nonlinear responses of the metal quantum well systems. The state-of-the-art quantum plasmonic films will be fabricated at feature size down to 1-3 nm. Based on our theoretical estimation and preliminary experimental results, the quantum plasmonic systems will lead to the record high third order nonlinear susceptibility. The proposed quantum plasmonic waveguide-based supercontinuum generation devices, if successfully demonstrated, would be the first supercontinuum light source with micrometer footprint, enabling new opportunities for high-density integration and on-chip applications. Other than proposing specific individual concept and device, the PI envisions this project as a paradigm shift in the way a nonlinear material is constructed and implemented. Due to the large transition matrix elements and the high electron density in ultrathin metal films, quantum plasmonic structures can be tailored to possess extremely high nonlinear responses at desired operation frequencies. The outcome of this research will fill up knowledge void in both fields of plasmonics and nonlinear optics and pave the way to a new generation of strong nonlinear materials that may find important applications in integrated nonlinear optics.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

近几十年来，非线性光学技术一直是一个快速增长的科学领域，并且对光学信息处理，电信等的关键应用以及大多数材料的非线性系数通常较低，因此对探索具有较高非线性响应的新材料的非线性系数一直是该领域中最大的挑战之一。作为一个独特的研究领域，血浆已经成为一种在纳米级操纵光的新方法。纳米化的最新进展使等离子结构在纳米尺度下，导致由于量子大小效应而导致异常高的非线性响应。该项目旨在将量子等离子间的领域与非线性光学元素结合起来，以发现具有极高非线性响应的新光学材料，并将此类新材料应用于具有超小的足迹的芯片超级纤维生成。该项目涉及基本科学探索，纳米材料设计和制造，片上超局部生成的设备设计和制造以及光学特征。这项研究将解决纳米质谱和非线性光学的横截面的基本问题，并在纳米材料设计和增长，光学表征，设备制造，纳米科学和纳米技术的重要领域的培训毕业生和本科生。变革性的目标是提供基于具有极高非线性的工程纳米材料的下一代集成光学组件的科学基础。基于研究的课程开发，基于Web的研究结果的传播，期刊出版物和会议/研讨会演讲，将影响更多的学生，包括在大学前级别的学生。技术描述。该项目解决了一种在量子工程系统中创建强大的非线性响应的新方法，以及如何使用它来构建超紧凑型超脑部生成设备。金属量子井的非线性光学性质将被系统地研究。将开发动态量子静电模型，以准确描述和预测金属量子井系统的非线性响应。最先进的量子等离子膜的特征尺寸将降至1-3 nm。基于我们的理论估计和初步实验结果，量子等离子系统将导致创纪录的高三阶非线性敏感性。拟议的基于等离子波导的量子性波导的超脑生成设备（如果成功证明）将是第一个具有微米足迹的超脑光源，为高密度整合和芯片应用提供了新的机会。除了提出特定的个人概念和设备外，PI还设想该项目是构建和实施非线性材料的方式的范式转变。由于超薄金属膜中的较大过渡矩阵元件和高电子密度，因此可以根据所需的操作频率量身定制量子等离子体结构以具有极高的非线性响应。这项研究的结果将填补在等离子间和非线性光学领域的知识空白，并为新一代的强大非线性材料铺平了道路，这些材料可能在综合非线性光学方面找到了重要的应用。该奖项反映了NSF的法定任务，并通过使用该基金会的知识优点和广泛的影响来评估NSF的法定任务。

项目成果

期刊论文数量（3）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Nonlinear Computational Edge Detection Metalens

DOI：
10.1002/adfm.202204734
发表时间：
2022-06
期刊：
Advanced Functional Materials
影响因子：
19
作者：
Junxiao Zhou;Junxiang Zhao;Qianyi Wu;Ching‐Fu Chen;M. Lei;Guanghao Chen;Fanglin Tian;Zhaowei Liu
通讯作者：
Junxiao Zhou;Junxiang Zhao;Qianyi Wu;Ching‐Fu Chen;M. Lei;Guanghao Chen;Fanglin Tian;Zhaowei Liu

Tunable topological phase transition in the telecommunication wavelength

电信波长中的可调谐拓扑相变