Collaborative Research: Manipulating Terahertz Waves Using Three-Dimensional Metamaterials

合作研究：利用三维超材料操纵太赫兹波

• 批准号: 1232081
• 负责人: Weili Zhang
• 金额: $ 26.7万
• 依托单位: Oklahoma State 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 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1232081&HistoricalAwards=false
• 关键词: Collaborative; Research; Manipulating; Terahertz; Waves

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.

合作研究：利用三维超材料操纵太赫兹波[j]：孙成，张卫力，John F. O'Hara，提案号1232134 .摘要知识优势：尽管太赫兹（THz）波在遥感、成像、光谱学和通信方面有着巨大的潜在应用前景，但它仍然是电磁波谱中最不发达的领域之一。太赫兹波携带独特的分子特征，这在其他电磁波谱中是不可用的。特别是，太赫兹波为国土安全领域的转型进步提供了机会，例如在僵局探测和隐藏爆炸目标识别方面的应用。然而，由于缺乏在太赫兹频率下具有有效响应的电磁材料，太赫兹波已被证明非常具有挑战性。这个吗?太赫兹差距?这极大地阻碍了太赫兹光学元件和系统的发展。鉴于这些挑战，本研究计划的目标是开发一种结合变换光学（to）理论、使用有效介质近似的超材料设计、可扩展的三维（3D）制造技术和实验验证方法的协同方法，以探索一系列新型太赫兹光学元件：1)启用to的无像差太赫兹成像透镜，以及2)集成太赫兹光谱平台。这里提出的合作研究无疑将为各种急需的、具有前所未有功能的太赫兹应用带来新的可能性。更广泛的影响：这项研究通过提供一种全新的解决方案来控制这些波的流动，解决了围绕光谱上重要的太赫兹频率范围的巨大挑战。这项研究的成果有望在多个学科之间架起桥梁，创造一个新的科学领域。太赫兹超材料,?同时在跨学科的学习环境中培养下一代科学和工程领导人才。从这项研究中获得的创新代表了一项技术突破，它将迎来新一代的太赫兹光学系统，大大提高了分辨率，效率和小型化，以满足商业和军事应用的需求。提出的太赫兹三维超材料概念和综合研究方案可以进一步扩展到隐身技术、先进通信系统、医疗成像和遥感等广泛的电磁波频谱。