Design of impedance matched infrared antennas using optical vector near-field mapping

利用光矢量近场映射设计阻抗匹配红外天线

• 批准号: 1204993
• 负责人: Glenn Boreman
• 金额: $ 39万
• 依托单位: University of North Carolina at Charlotte
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-23 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1204993&HistoricalAwards=false
• 关键词: Design; impedance; matched; infrared; antennas

Objective:We seek to increase sensitivity of antenna-coupled infrared detectors by an order of magnitude. We will gain understanding of relevant design parameters, and subsequently design impedance-matched antenna-sensor combinations. We utilize our newly developed high-spatial-resolution, three-dimensional probe techniques to measure electric fields in the vicinity of the infrared antennas. This enables us, for the first time, to determine the infrared-frequency impedance as a function of position. Combined with an iterative design-fabrication-test approach, this will enable development of infrared impedance-matching components.Intellectual merit:We scale up the concept of a radiofrequency network analyzer by nine orders of magnitude in frequency. This proven advance yields experimental tools needed to extend the performance of antenna-coupled sensors by a similar scale in frequency, making the entire field of passive low-5frequency electronics operational in the infrared range. Infrared antennas have been proposed for a wide range of applications, including nanoscale chemical and photon sensors, nearfield microscopy, and optical rectennas for energy-harvesting. Such devices would transform the field of optics, enabling sensing devices of nano-scale dimensions with order-of-magnitude enhancement in sensitivity, responsivity, and reliability compared to conventional optical techniques.Broader impact:The proposed research greatly extends the frequency range of classical electronics, while serving as the foundation for a dynamic and engaging learning environment at each of the PIs? institutions. All three PIs have an established track record of mentorship of underrepresented students, and all three participate in programs for science and engineering outreach to K-12 students and research participation of undergraduate students.

目的：将天线耦合红外探测器的灵敏度提高一个数量级。我们将了解相关的设计参数，并随后设计阻抗匹配的天线-传感器组合。我们利用我们新开发的高空间分辨率，三维探针技术来测量红外天线附近的电场。这使我们第一次能够确定红外频率阻抗作为位置的函数。结合迭代设计-制造-测试方法，这将使红外阻抗匹配组件的开发成为可能。智力优势：我们将射频网络分析仪的概念在频率上扩大了9个数量级。这一经过验证的进步产生了实验工具，需要将天线耦合传感器的性能扩展到类似的频率尺度，使整个无源低频电子设备领域在红外范围内工作。红外天线已经被提出用于广泛的应用，包括纳米级化学和光子传感器、近场显微镜和用于能量收集的光学整流天线。这种设备将改变光学领域，使纳米级的传感设备在灵敏度、响应性和可靠性方面比传统光学技术有数量级的提高。更广泛的影响：拟议的研究大大扩展了经典电子学的频率范围，同时作为每个pi动态和引人入胜的学习环境的基础。机构。这三家pi在指导代表性不足的学生方面都有良好的记录，而且这三家pi都参与了面向K-12学生的科学和工程拓展项目，以及本科生的研究参与。