Collaborative Research: Manipulating Terehertz wave using three-dimensional metamaterials

合作研究：利用三维超材料操纵太赫兹波

• 批准号: 1232134
• 负责人: Cheng Sun
• 金额: $ 22.3万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1232134&HistoricalAwards=false
• 关键词: Collaborative; Research; Manipulating; Terehertz; wave

Collaborative Research: Manipulating terahertz waves using three-dimensional metamaterialsPI: Cheng Sun, Weili Zhang, John F. O'Hara, Proposal No. 1232134ABSTRACTIntellectual Merit: Terahertz (THz) waves remain one of the most underdeveloped regions of the electromagnetic spectrum, despite the great promise for potential applications in remote sensing, imaging, spectroscopy, and communications. THz waves carry unique molecular signatures that are not available in the rest of the electromagnetic spectrum. In particular, THz waves offer the opportunity for transformational advances in homeland security, such as applications in standoff detection and identification of concealed explosive targets. However, THz waves have proven very challenging to control due to a paucity of electromagnetic materials with an effective response at THz frequencies. This ?THz gap? results in a great impediment for the development of functional THz optical components and systems. In view of these challenges, the objective of this research proposal is to develop a synergetic approach that incorporates Transformation Optics (TO) theory, metamaterial design using the effective media approximation, scalable three-dimensional (3D) fabrication technologies, and a method of experimental validation to explore a range of novel THz optical components: 1) TO-enabled aberration free THz imaging lens, and 2) an integrated THz spectroscopy platform. The collaborative research proposed here will undoubtedly initiate new possibilities for a variety of much needed THz applications with unprecedented functionalities. Broader Impact: This research addresses the grand challenges surrounding the spectroscopically important THz frequency range by offering a fundamentally new solution to control the flow of these waves. The fruition of this research is expected to be the forging of bridges between the multiple disciplines for creating a new field of THz Metamaterials, while training the next generation of scientific and engineering leadership in an interdisciplinary learning environment. The innovations obtained from this research represent a technological breakthrough, which will usher in a new generation of THz optical systems with greatly improved resolution, efficiency, and miniaturization to meet the needs of commercial and military applications. The proposed THz 3D metamaterials concept and integrated research protocol can be further extended to the broad electromagnetic wave spectrum for stealth technology, advanced communication systems, medical imaging, and remote sensing.

Collaborative Research: Manipulating terahertz waves using three-dimensional metamaterialsPI: Cheng Sun, Weili Zhang, John F. O'Hara, Proposal No. 1232134ABSTRACTIntellectual Merit: Terahertz (THz) waves remain one of the most underdeveloped regions of the electromagnetic spectrum, despite the great promise for potential applications in remote sensing, imaging,光谱和通信。 THZ波带有独特的分子特征，在电磁频谱的其余部分中不可用。特别是，THZ的波浪为国土安全性的变革性进步提供了机会，例如在对抗检测和识别隐藏爆炸物目标方面的应用。然而，由于电磁材料缺乏电磁材料的有效响应，因此THZ波在控制频率方面已被证明非常具有挑战性。这个差距？导致功能性THZ光学组件和系统的开发极大的障碍。 In view of these challenges, the objective of this research proposal is to develop a synergetic approach that incorporates Transformation Optics (TO) theory, metamaterial design using the effective media approximation, scalable three-dimensional (3D) fabrication technologies, and a method of experimental validation to explore a range of novel THz optical components: 1) TO-enabled aberration free THz imaging lens, and 2) an integrated THz spectroscopy 平台。毫无疑问，这里提出的合作研究将为具有前所未有的功能的各种急需的THZ应用程序启动新的可能性。更广泛的影响：这项研究通过提供从根本上提供新的解决方案来控制这些波的流动，以解决光谱上重要的THZ频率范围的巨大挑战。预计这项研究的成果将是在多个学科之间锻造桥梁，以创建新的THZ超材料领域，同时在跨学科学习环境中培训下一代科学和工程领导力。从这项研究中获得的创新代表了技术突破，该技术的突破将迎来新一代的THZ光学系统，其分辨率，效率和小型化大大提高，以满足商业和军事应用的需求。提出的THZ 3D超材料概念和集成的研究协议可以进一步扩展到隐形技术，先进通信系统，医学成像和遥感的广泛电磁波谱。