Realization of One-Dimensional Dynamic Broadband Router
一维动态宽带路由器的实现
基本信息
- 批准号:1809723
- 负责人:
- 金额:$ 37.49万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-07-01 至 2021-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This program seeks to demonstrate an engineered metamaterial-based router capable of continuously tuning the angle of reflection via an externally applied bias across the infrared spectrum. Such a dynamic broadband optical router, if realized, would enable the far-field steering of beams, enabling new optical system functionalities such as signal multiplexing and routing. Today, the closest state-of-the-art solutions to the proposed system are ones based on MEMS micro-mirrors and liquid crystal spatial light modulators. In comparison to these known systems, the proposed device would be revolutionary in terms of switching speed, compactness, and versatile reconfigurability with the benefit of no moving parts. The physical and design principles, large-area manufacturing technologies, and software developed in this program will prove invaluable for future developments of the proposed dynamic achromatic optical router. All co-investigators will supervise undergraduate students, including individuals belonging to under-represented groups in sciences and engineering, building on their extensive track record in this important area. Co-PIs will employ a unified plan of action to incorporate nanophotonics into curricula, including classes in nanophotonics and openly accessible lecture notes. Furthermore, co-PIs will organize and establish a summer experience workshop for K-12 students in their respective community e.g. in Science Museums and Science Fair, an activity that will be closely coordinated with the institution and reported to NSF annually. They will also organize summer school, with emphasis on minority and under-represented participants. Conventional approaches to the design of metasurfaces rely on subwavelength, near-resonance, metallic or dielectric scatterers as building blocks. The major drawback of such an approach is that the shaping of the wavefront can only be engineered for a frequency, since the scattered phase for each resonator depends on frequency in a highly nonlinear fashion. Indeed, the implementation of metasurfaces that function achromatically across a broad range of frequencies remains a formidable challenge. In conjunction, the electrical tunability of such anomalous reflection would represent a truly revolutionary device concept which can potentially employed in a variety of optical systems in a disruptive manner. Here, co-PIs propose novel strategies to do just that. The anomalous reflections required to achieve this tuning are induced by a phase gradient along a sub-wavelength-scale nanostructured metasurface mediated by gap plasmons within ITO based nanogap structures. Electrical tuning is achieved through ITO materials, which modifies the phase velocity of the gap plasmons and exhibits true time delay which allows for electro-optic control. This program will design the above-mentioned one-dimensional dynamic achromatic optical router, fabricate the device, evaluate its performance and fundamental limits, and perform scatterometry measurement to corroborate with theory. The device will be realized with a unique high-throughput nanomanufacturing method, atomic layer lithography that allows us to realize ultrahigh-aspect-ratio metal trenches needed for this work. If realized, the proposed device constitutes an electrically controllable plasmonic optical router that can be employed in a variety of optical systems, specifically where achromatic control of the light path on a pixel-by-pixel basis is essential, and cannot otherwise be achieved with current state-of-the-art.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.
该计划旨在展示一种基于工程超材料的路由器,该路由器能够通过外部施加的偏置在红外光谱范围内连续调整反射角度。这种动态宽带光路由器如果实现,将能够实现光束的远场转向,从而实现新的光学系统功能,例如信号复用和路由。目前,与所提出的系统最接近的最先进的解决方案是基于MEMS微镜和液晶空间光调制器的解决方案。与这些已知的系统相比,所提出的装置在切换速度、紧凑性和通用可重构性方面将是革命性的,并且没有移动部件。物理和设计原理,大面积制造技术,并在这个计划中开发的软件将被证明是非常宝贵的未来发展的建议动态消色差光路由器。所有共同研究者将监督本科生,包括属于科学和工程领域代表性不足的群体的个人,建立在他们在这一重要领域的广泛记录基础上。Co-PI将采用统一的行动计划,将纳米光子学纳入课程,包括纳米光子学课程和公开访问的讲义。此外,co-PI将在各自的社区为K-12学生组织和建立一个夏季体验研讨会,例如在科学博物馆和科学博览会,这项活动将与机构密切协调,并每年向NSF报告。它们还将组织暑期学校,重点是少数民族和代表人数不足的参与者。设计超颖表面的传统方法依赖于亚波长、近共振、金属或电介质散射体作为构建块。这种方法的主要缺点是波前的成形只能针对频率进行设计,因为每个谐振器的散射相位以高度非线性的方式取决于频率。事实上,实现在广泛的频率范围内无色差地工作的元表面仍然是一个巨大的挑战。结合起来,这种异常反射的电可调谐性将代表真正革命性的器件概念,其可以以破坏性的方式潜在地用于各种光学系统中。在这里,合作PI提出了新的策略来做到这一点。实现这种调谐所需的异常反射是由沿着亚波长级纳米结构超颖表面的相位梯度引起的,该超颖表面由基于ITO的纳米间隙结构内的间隙等离子体介导。通过ITO材料实现电调谐,ITO材料修改差距等离子体激元的相速度,并表现出允许电光控制的真实时间延迟。本计画将设计上述一维动态消色差光路由器,制作装置,评估其效能与基本限制,并进行散射量测以证实理论。该器件将通过独特的高通量纳米制造方法实现,原子层光刻使我们能够实现这项工作所需的超高纵横比金属沟槽。如果实现的话,所提出的设备构成了可以在各种光学系统中采用的电控等离子体光学路由器,特别是在逐像素地对光路的消色差控制是必要的情况下,而且以目前的状况是无法实现的,该奖项反映了NSF的法定使命,并通过使用基金会的智力价值进行评估,更广泛的影响审查标准。
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)
Impact of Surface Roughness in Nanogap Plasmonic Systems
- DOI:10.1021/acsphotonics.0c00099
- 发表时间:2020-04-15
- 期刊:
- 影响因子:7
- 作者:Ciraci, Cristian;Vidal-Codina, Ferran;Smith, David R.
- 通讯作者:Smith, David R.
Image polaritons in boron nitride for extreme polariton confinement with low losses
- DOI:10.1038/s41467-020-17424-w
- 发表时间:2020-07-20
- 期刊:
- 影响因子:16.6
- 作者:Lee, In-Ho;He, Mingze;Oh, Sang-Hyun
- 通讯作者:Oh, Sang-Hyun
Graphene acoustic plasmon resonator for ultrasensitive infrared spectroscopy
- DOI:10.1038/s41565-019-0363-8
- 发表时间:2019-04-01
- 期刊:
- 影响因子:38.3
- 作者:Lee, In-Ho;Yoo, Daehan;Oh, Sang-Hyun
- 通讯作者:Oh, Sang-Hyun
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Tony Low其他文献
Broadband enhancement of on-chip single-photon extraction via tilted hyperbolic metamaterials
通过倾斜双曲超材料实现片上单光子提取的宽带增强
- DOI:
10.1063/1.5141275 - 发表时间:
2020-03 - 期刊:
- 影响因子:15
- 作者:
Lian Shen;Xiao Lin;Mikhail Shalaginov;Tony Low;Xianmin Zhang;Baile Zhang;Hongsheng Chen - 通讯作者:
Hongsheng Chen
Giant piezoelectricity in group-IV monochalcogenides with ferroelectric AA layer stacking
具有铁电 AA 层堆叠的 IV 族单硫属化物中的巨压电性
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:3.7
- 作者:
Seungjun Lee;Hyeong;Wei Jiang;Young;Tony Low - 通讯作者:
Tony Low
Anomalous Temperature Dependence in Metal–Black Phosphorus Contact
金属黑磷接触中的反常温度依赖性
- DOI:
10.1021/acs.nanolett.7b02278 - 发表时间:
- 期刊:
- 影响因子:10.8
- 作者:
Xuefei Li;Roberto Grassi;Sichao Li;Tiaoyang Li;Xiong Xiong;Tony Low;Yanqing Wu - 通讯作者:
Yanqing Wu
Polaritons in layered two-dimensional materials
层状二维材料中的极化激元
- DOI:
10.1038/nmat4792 - 发表时间:
2016-11-28 - 期刊:
- 影响因子:38.500
- 作者:
Tony Low;Andrey Chaves;Joshua D. Caldwell;Anshuman Kumar;Nicholas X. Fang;Phaedon Avouris;Tony F. Heinz;Francisco Guinea;Luis Martin-Moreno;Frank Koppens - 通讯作者:
Frank Koppens
Tony Low的其他文献
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{{ truncateString('Tony Low', 18)}}的其他基金
DMREF: Collaborative Research: Machine learning exploration of atomic heterostructures towards perfect light absorber and giant piezoelectricity
DMREF:协作研究:原子异质结构的机器学习探索完美的光吸收体和巨压电性
- 批准号:
1921629 - 财政年份:2019
- 资助金额:
$ 37.49万 - 项目类别:
Standard Grant
EFRI NewLAW: Mid-infrared topological plasmon-polaritons with 2D materials
EFRI NewLAW:采用 2D 材料的中红外拓扑等离子激元
- 批准号:
1741660 - 财政年份:2017
- 资助金额:
$ 37.49万 - 项目类别:
Standard Grant
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