EFRI NewLAW: New frontiers for topologically-protected propagation of light, sound, elastic and mechanical waves

EFRI NewLAW：光、声、弹性和机械波拓扑保护传播的新领域

基本信息

批准号：
1641069
负责人：
Andrea Alu
金额：
$ 200万
依托单位：
University of Texas at Austin
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：
2016-08-15 至 2021-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1641069&HistoricalAwards=false
关键词：
EFRI NewLAW New frontiers topologically

项目摘要

This award supports an ambitious four-year team-effort with the objective of conceiving, exploring, designing and realizing a new class of devices based on nanophotonic, radio-wave, acoustic, elastic, mechanical interactions and their combinations. The devices will exploit robust, broadband, topologically-protected transport properties related to the propagation of optical, acoustic and mechanical waves. These efforts will aim at establishing a new paradigm for signal transport and will open unprecedented opportunities for technology by offering disruptive advances in reconfigurability, isolation, robustness and non-reciprocal transmission properties that will benefit several national grand challenges for our society. These include enhanced data-rate and spectrum efficiency for the telecom industry, enhanced acoustic imaging for the healthcare industry, sensing concepts for civil resource management and the defense industry. Other areas that may benefit from the progress enabled by this program include sound proofing, radiation hardening, improved nano-assembly, identification and tagging for the manufacturing sector, and improvements in fabrication tolerance and computational efficiency for the photonic industry. At the same time, this program will engage domestic companies with direct interest in its technological progress and the next generation of scientists in a highly interdisciplinary research program, with emphasis on underrepresented diversity and minorities.In condensed-matter physics, topological insulators enable robust one-way electron conduction at their edges, and at the same time insulation in the bulk. These unusual properties, stemming from the non-trivial topology of their electronic band structure, have recently inspired analogues for photons and phonons in electromagnetic, acoustic, elastic and mechanical systems. So far these efforts have been focused on physics-based explorations, with limited impact on device engineering and applications. This project will focus on engineering-oriented investigations that: will significantly advance the theory, analysis, design, modeling and control of topologically-protected wave propagation achieved by synthetic gauge fields (enabled by spatio-temporal modulation and/or nonlinear wave-matter interactions) and pseudo-spins (enabled by internal and spatial symmetries of fields and structures); will develop accurate analysis, modeling and optimal designs of compact topological devices for several applications, including isolators and circulators, multiplexers, non-reciprocal emitters and topological assembly, applicable to electromagnetic, acoustic, elastic waves and their hybrids; will experimentally verify, realize and characterize these devices not only to demonstrate topological protection, but also to show improved performance and their impact in practical application systems; and will introduce and explore new mechanisms for topological protection, such as topological order induced by nonlinearities and by multi-physics wave-matter interactions, significantly advancing the frontiers of topological science, from basic theory to advanced fabrication and characterization.

该奖项支持雄心勃勃的四年团队富裕，目的是构思，探索，设计和实现基于纳米光子，无线电波，声学，弹性，弹性，机械互动及其组合的新设备。这些设备将利用与光学，声学和机械波的传播相关的稳健，宽带，拓扑保护的传输特性。这些努力将旨在建立一个新的信号运输范式，并通过在可重新配置，孤立性，鲁棒性和非互动传播属性方面开放前所未有的技术机会，这将使我们社会的几个国家巨大挑战受益。其中包括提高电信行业的数据率和频谱效率，增强了医疗保健行业的声学成像，对公民资源管理和国防工业的传感概念。该计划可以从中获得的进度受益的其他领域包括校对，辐射硬化，改进的纳米组装，对制造业的标识和标记，以及改善光子行业的制造公差和计算效率。同时，该计划将与对其技术进步有直接感兴趣的国内公司和下一代科学家参与一项高度跨学科的研究计划，重点是代表性不足的多样性和少数群体。在凝结的物理学中，拓扑绝缘子启用了在其边缘的强大单程电子传导，并在同一时间内进行良好的良好时间。这些不寻常的特性源于其电子带结构的非平凡拓扑，最近启发了电磁，声学，弹性和机械系统中光子和声子的类似物。到目前为止，这些努力一直集中在基于物理的探索上，对设备工程和应用的影响有限。该项目将着重于以工程为导向的研究，这些调查将大大推动通过合成规范领域实现的拓扑，分析，设计，建模和控制对拓扑保护的波传播（通过时空调制和/或非线性波 - 互动）和pseudo spins和pseudo（由内部和空间sysmetials symetries sysmeters and启用）;将开发针对多种应用的紧凑型拓扑设备的准确分析，建模和最佳设计，包括隔离器和循环器，多路复用器，非转录发射器和拓扑组件，适用于电磁，声学，弹性波，弹性波及其杂种；将在实验上验证，实现和表征这些设备，不仅可以证明拓扑保护，还可以显示出改善的性能及其对实际应用系统的影响；并将介绍和探索用于拓扑保护的新机制，例如非线性和多物理波浪相互作用引起的拓扑顺序，从基本理论到先进的制造和表征，都大大推进了拓扑科学的前沿。