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

• 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

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努力，其目标是构思、探索、设计和实现基于纳米光子、无线电波、声学、弹性、机械相互作用及其组合的新型设备。这些器件将利用与光波、声波和机械波传播相关的稳健、宽带、拓扑保护的传输特性。这些努力旨在建立信号传输的新范式，并将通过在可重构性、隔离性、鲁棒性和非互易性传输特性方面提供颠覆性进步，为技术带来前所未有的机遇，这将有利于我们社会面临的几个国家重大挑战。其中包括电信行业增强的数据速率和频谱效率、医疗保健行业增强的声学成像、民用资源管理和国防工业的传感概念。其他可能受益于该计划所取得进展的领域包括隔音、辐射硬化、改进的纳米组装、制造业的识别和标记，以及光子行业制造公差和计算效率的改进。与此同时，该项目将吸引对其技术进步有直接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项目，重点关注代表性不足的多样性和少数群体。在凝聚态物理中，拓扑绝缘体能够在其边缘实现强大的单向电子传导，同时在体中实现绝缘。这些不寻常的特性源于其电子能带结构的非平凡拓扑，最近激发了电磁、声学、弹性和机械系统中光子和声子的类似物。到目前为止，这些努力主要集中在基于物理的探索上，对设备工程和应用的影响有限。 该项目将重点关注以工程为导向的研究：将显着推进由合成规范场（通过时空调制和/或非线性波与物质相互作用实现）和赝自旋（通过场和结构的内部和空间对称性实现）实现的拓扑保护波传播的理论、分析、设计、建模和控制；将为多种应用开发紧凑型拓扑器件的精确分析、建模和优化设计，包括隔离器和环行器、多路复用器、不可逆发射器和拓扑组件，适用于电磁波、声波、弹性波及其混合波；将通过实验验证、实现和表征这些器件，不仅是为了展示拓扑保护，而且是为了展示改进的性能及其在实际应用系统中的影响；并将引入和探索新的拓扑保护机制，例如非线性和多物理波-物质相互作用引起的拓扑序，显着推进拓扑科学的前沿，从基础理论到先进制造和表征。

项目成果

Nodal chain semimetal in geometrically frustrated systems

• DOI: 10.1103/physrevb.99.094206
• 发表时间: 2019
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Meng Xiao;Xiao-Qi Sun;S. Fan

Observation of Hofstadter butterfly and topological edge states in reconfigurable quasi-periodic acoustic crystals

• DOI: 10.1038/s42005-019-0151-7
• 发表时间: 2019-06-06
• 期刊: COMMUNICATIONS PHYSICS
• 影响因子: 5.5
• 作者: Ni, Xiang;Chen, Kai;Khanikaev, Alexander B.
• 通讯作者: Khanikaev, Alexander B.

Synthetic space with arbitrary dimensions in a few rings undergoing dynamic modulation

• DOI: 10.1103/physrevb.97.104105
• 发表时间: 2017-10
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Luqi Yuan;Meng Xiao;Qian Lin;S. Fan

Topologically Protected Complete Polarization Conversion

• DOI: 10.1103/physrevlett.119.167401
• 发表时间: 2017-10-18
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Guo, Yu;Xiao, Meng;Fan, Shanhui
• 通讯作者: Fan, Shanhui

Metasurfaces: Near‐Field Characterization of Higher‐Order Topological Photonic States at Optical Frequencies (Adv. Mater. 18/2021)

超表面：光学频率下高阶拓扑光子态的近场表征（Adv. Mater. 18/2021）

• DOI: 10.1002/adma.202170135
• 发表时间: 2021
• 期刊: Advanced Materials
• 影响因子: 29.4
• 作者: Vakulenko, Anton;Kiriushechkina, Svetlana;Wang, Mingsong;Li, Mengyao;Zhirihin, Dmitry;Ni, Xiang;Guddala, Sriram;Korobkin, Dmitry;Alù, Andrea;Khanikaev, Alexander B.
• 通讯作者: Khanikaev, Alexander B.