ASCENT: PROWESS: Phase-change Reconfigurable Optical WavEfront Synthesis System

ASCENT：PROWESS：相变可重构光波前合成系统

• 批准号: 2132929
• 负责人: Juejun Hu
• 金额: $ 150万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-15 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2132929&HistoricalAwards=false
• 关键词: ASCENT; PROWESS; Phase; change; Reconfigurable

On-demand control of light propagation has been a Holy Grail for photonic engineers. An optical system capable of dynamic control of light propagation can be reconfigured on-the-fly to fulfill diverse functions such as light focusing, deflection, and switching, making them useful for applications such as photonic switching, display, imaging, and optical camouflage. This project aims to demonstrate such a system, which consists of sub-wavelength structures made of phase-change materials. The atomic structure and hence optical properties of the phase-change materials can be dynamically modulated, thereby enabling the system to be flexibly reconfigured to meet diverse application needs. The system, once realized, will have far-reaching impacts across many fields of optics and photonics by enabling new optical computing and imaging systems with major size, weight, and power advantages over their traditional counterparts. The research will be tightly integrated with interdisciplinary massive open online course development.In this project, a team of researchers with cross-cutting expertise spanning materials science, photonic devices and circuits will demonstrate a Phase-change Reconfigurable Optical WavEfront Synthesis System (PROWESS). PROWESS will realize independent continuous optical phase tuning and amplitude modulation with wavelength-scale resolution, thereby enabling complete control of light propagation. PROWESS comprises metasurfaces or sub-wavelength antenna arrays made of novel phase-change materials, where their phase transition and hence refractive index are electrically tuned. Switching of a large metasurface matrix is facilitated by integration with silicon transistor arrays. PROWESS will be further applied to realize a reconfigurable optical neural network and an infrared imaging system capable of collecting of multi-dimensional information such as light wavelength and polarization. Success of the project will not only directly benefit information technology and national security, but also strengthen US semiconductor and photonics manufacturing.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.

光传播的按需控制一直是光子工程师的圣杯。能够动态控制光传播的光学系统可以在运行中重新配置，以实现光聚焦、偏转和切换等多种功能，使其可用于光子切换、显示、成像和光学伪装等应用。该项目旨在演示这样一个系统，该系统由相变材料制成的亚波长结构组成。相变材料的原子结构和光学特性可以动态调节，从而使系统能够灵活地重新配置以满足不同的应用需求。该系统一旦实现，将对光学和光子学的许多领域产生深远的影响，使新的光学计算和成像系统比传统系统具有更大的尺寸、重量和功率优势。该研究将与跨学科大规模开放在线课程开发紧密结合。在该项目中，一组拥有材料科学、光子器件和电路等跨领域专​​业知识的研究人员将展示相变可重构光学波前合成系统（PROWESS）。 PROWESS将实现具有波长尺度分辨率的独立连续光相位调谐和幅度调制，从而实现对光传播的完全控制。 PROWESS 包括由新型相变材料制成的超表面或​​亚波长天线阵列，其中它们的相变和折射率是电调谐的。通过与硅晶体管阵列集成，可以促进大型超表面矩阵的切换。 PROWESS将进一步应用于实现可重构光学神经网络和能够采集光波长、偏振等多维信息的红外成像系统。该项目的成功不仅将直接有利于信息技术和国家安全，还将加强美国半导体和光子制造业。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和更广泛的影响审查标准进行评估，认为值得支持。

项目成果

Optical and Electrical Memories for Analog Optical Computing

用于模拟光学计算的光电存储器

• DOI: 10.1109/jstqe.2023.3239918
• 发表时间: 2023-03-01
• 期刊: IEEE Journal of Selected Topics in Quantum Electronics
• 影响因子: 4.9
• 作者: S. R. Kari;Carlos A. Ríos Ocampo;Lei Jiang;Jiawei Meng;N. Peserico;V. Sorger;Juejun Hu;N. Youngblood
• 通讯作者: N. Youngblood

Are phase change materials ideal for programmable photonics?: opinion

相变材料是可编程光子学的理想选择吗？：意见

• DOI: 10.1364/ome.456895
• 发表时间: 2022-06
• 期刊: Optical Materials Express
• 影响因子: 2.8
• 作者: Simpson, Robert E.;Yang, Joel K. W.;Hu, Juejun
• 通讯作者: Hu, Juejun

Near-infrared metalens for high-resolution and deep focus optical coherence tomography

用于高分辨率和深焦光学相干断层扫描的近红外超透镜

• DOI: 10.1063/5.0131170
• 发表时间: 2022-12-01
• 期刊: AIP Advances
• 影响因子: 1.6
• 作者: M. Haerinia;B. Zheng;Aaron Hutchins;H. Tang;Hang Li;Yunxi Dong;Wei Guo;Hualiang Zhang
• 通讯作者: Hualiang Zhang

Reconfigurable metasurfaces towards commercial success

可重构超表面走向商业成功

• DOI: 10.1038/s41566-022-01099-4
• 发表时间: 2022-12-22
• 期刊: Nature Photonics
• 影响因子: 35
• 作者: T. Gu;Hyun Jung Kim;C. Rivero‐Baleine;Juejun Hu
• 通讯作者: Juejun Hu