Collaborative Research: Wave transport via eigenchannels of complex media

合作研究：通过复杂介质特征通道的波传输

• 批准号: 1905465
• 负责人: Hui Cao
• 金额: $ 35.72万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-05-01 至 2025-04-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1905465&HistoricalAwards=false
• 关键词: Collaborative; Research; Wave; transport; via

NON-TECHNICAL ABSTRACTUnlike line-of-sight propagation in a translucent medium, light transport in an opaque medium is a seemingly random walk that is described by a diffusion process. Common to electronic, acoustic, as well as the electromagnetic waves, most of the incident wave is reflected, and only a small fraction is transmitted via a multitude of partial waves with a broad range of delay times. Counterintuitively, this behavior can be altered by exploiting wave interference. This award supports an experimental and theoretical efforts to investigate the degree, to which one can manipulate input waves in a chip-scale platform, to achieve near-100% transmission or avoid temporal spread of a short pulse. The collaborative program of an experimental group at Yale University and a theoretical group at Missouri University of Science & Technology will train graduate and undergraduate students to conduct interdisciplinary research across the evolving boundaries of multiple fields, including condensed matter physics, optics of complex media, nanotechnology, and computational physics. The cutting-edge research will be incorporated in the curriculum at both participating institutions. This project includes an extensive exchange program with visits by faculty and students, summer internships, design and assembly of optical demonstrations for undergraduate research projects and recruitment activities.TECHNICAL ABSTRACTThe concept of transmission eigenchannels has been a cornerstone of mesoscopic physics but it is also applicable to electromagnetic waves and acoustic waves. Despite of the essential role of the eigenchannels in mesoscopic transport and vast opportunities for optical/acoustic imaging applications, little is known about the intrinsic properties of individual transmission eigenchannels or the time-delay eigenchannels. This collaborative program supports a joint experimental and theoretical studies on the statistical properties of individual eigenchannels, such as their fluctuations and correlations, in a unique on-chip photonic platform that allows both selective coupling of light into a single eigenchannel and direct probe of its spatial structure inside the random medium. Compared to electronic systems, robustness of coherence effects for photons at room temperature makes optical systems ideal for the in-depth fundamental studies of coherent wave transport. The proposed work addresses long-standing questions in mesoscopic physics regarding the nature and statistical properties of individual transmission and time-delay eigenchannels and the roles they play in static and dynamic wave transport. A systematic comparison between the experimental and numerical results will provide key insights into how the eigenchannels are formed, what determines their properties, and whether it is possible to achieve simultaneously spatial and temporal control of wave transmission. The research program will produce a wide range of experimental and numerical data, which will pave the way for the mesoscopic physics community to develop and verify new theoretical models for coherent wave transport. In optics, the fundamental understanding of coherent propagation via eigenchannels will inform a broad range of practical applications, from laser surgery, photovoltaics, imaging in turbid media, to random laser and energy-efficient ambient lighting. The collaborative experimental-theoretical program will train graduate and undergraduate students to conduct interdisciplinary research across the evolving boundaries of multiple fields, including condensed matter physics, optics of complex media, nanotechnology, and computational physics. The cutting-edge research will be incorporated in the curriculum at both participating institutions. The two teams will join force in education outreach activities.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.

在半透明介质中，不透明的介质中的非技术抽象般的视线传播是一种看似随机的步行，它是通过扩散过程描述的。与电子，声学以及电磁波共有的共同，大多数入射波都反映了，并且只有一小部分通过具有较大延迟时间的众多部分波传播。违反直觉，可以通过利用波浪干扰来改变这种行为。该奖项支持实验和理论上的努力，以研究该程度，该程度可以在芯片尺度平台中操纵输入波，以实现接近100％的传播或避免短脉冲的时间扩散。耶鲁大学实验小组的合作计划和密苏里科学技术大学的理论小组将培训毕业生和本科生，以在多个领域不断发展的界限进行跨学科研究，包括凝结物理学，包括复杂媒体的光学，纳米技术，纳米技术和计算物理学。尖端研究将纳入两个参与机构的课程中。该项目包括一项广泛的交流计划，包括教职员工和学生的访问，暑期实习，设计和组装针对本科研究项目和招聘活动的光学演示。技术摘要Eigenchnels的概念Eigenchannels的概念已成为中镜物理学的基础，但也适用电磁波和声波。尽管特征班尼斯在介观运输中具有至关重要的作用，以及用于光学/声学成像应用的巨大机会，但对单个传输特征洋洋植物或时间延迟特征型的内在特性知之甚少。该协作计划在独特的芯片光子平台中支持了有关单个特征洋渠道的统计特性的联合实验和理论研究，例如它们的波动和相关性，该平台既可以选择将光耦合到单个eigenchnel和直接探测其空间的探测随机介质内的结构。与电子系统相比，室温下光子相干效应的鲁棒性使光系统非常适合对相干波传输的深入基础研究。所提出的工作解决了介绍物理学中有关个人传播和时间延迟特征班尼尔的性质和统计特性的长期问题，以及它们在静态和动态波传输中所扮演的角色。实验结果和数值结果之间的系统比较将提供关键的见解，以了解如何形成特征香？什么决定其性质以及是否有可能同时实现波动传输的空间和时间控制。该研究计划将产生广泛的实验和数值数据，这将为介观物理学界开发和验证相干波传输的新理论模型铺平道路。在光学元件中，对通过特征洋洋繁殖的相干传播的基本理解将为从激光手术，光伏，浑浊培养基中的成像到随机激光和能量有效的环境照明提供广泛的实用应用。协作实验理论计划将培训研究生和本科生，在多个领域的不断发展的界限上进行跨学科研究，包括冷凝物质物理学，复杂媒体的光学，纳米技术和计算物理学。尖端研究将纳入两个参与机构的课程中。这两个团队将加入教育外展活动。该奖项反映了NSF的法定任务，并被认为是使用基金会的知识分子优点和更广泛的影响评论标准的评估值得支持的。

项目成果

Sum rules for energy deposition eigenchannels in scattering systems

散射系统中能量沉积本征通道的求和规则

• DOI: 10.1364/ol.468697
• 发表时间: 2022
• 期刊: Optics Letters
• 影响因子: 3.6
• 作者: Yamilov, Alexey;Bender, Nicholas;Cao, Hui
• 通讯作者: Cao, Hui

Anderson localization of electromagnetic waves in three dimensions

• DOI: 10.1038/s41567-023-02091-7
• 发表时间: 2022-03
• 期刊: Nature Physics
• 影响因子: 19.6
• 作者: A. Yamilov;S. Skipetrov;Tyler W. Hughes;M. Minkov;Zongfu Yu;H. Cao

Customizing the Angular Memory Effect for Scattering Media

自定义散射介质的角度记忆效应

• DOI: 10.1103/physrevx.11.031010
• 发表时间: 2021
• 期刊: Physical Review X
• 影响因子: 12.5
• 作者: Yılmaz, Hasan;Kühmayer, Matthias;Hsu, Chia Wei;Rotter, Stefan;Cao, Hui
• 通讯作者: Cao, Hui

Circumventing the optical diffraction limit with customized speckles

• DOI: 10.1364/optica.411007
• 发表时间: 2021-02-20
• 期刊: OPTICA
• 影响因子: 10.4
• 作者: Bender, Nicholas;Sun, Mengyuan;Cao, Hui
• 通讯作者: Cao, Hui

Fluctuations and Correlations of Transmission Eigenchannels in Diffusive Media

• DOI: 10.1103/physrevlett.125.165901
• 发表时间: 2020-10-14
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Bender, Nicholas;Yamilov, Alexey;Cao, Hui
• 通讯作者: Cao, Hui