CAREER: Multidimensional THz Imaging and Collaborative Research Oriented Education

职业：多维太赫兹成像和协作研究导向的教育

• 批准号: 9984896
• 负责人: Alan Cheville
• 金额: $ 20万
• 依托单位: Oklahoma State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-05-01 至 2006-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9984896&HistoricalAwards=false
• 关键词: CAREER; Multidimensional; THz; Imaging; Collaborative

9984896ChevilleA research program using optoelectronically generated pulses for imagingand characterization in the far infrared (FIR) spectral region will beintegrated into a curriculum providing research opportunities forundergraduate students. Research Career Goals: A technique for broad bandwidth imaging in the farinfrared spectral region will be developed based on phase coherentdetection of scattered radiation. Applications include biomedicalimaging, nondestructive evaluation, and noncontact semiconductorcharacterization. This new approach will address spatial resolution,sample limitations, and chemical content mapping. The proposed techniqueis based on the existing ability to generate well characterized pulses ofTHz radiation.?? Specifically the research program will:Increase the power available in a compact, reliable THz source by atleast two orders of magnitude through enhancement of existing technologies,and collaborative work on magnetically enhanced THz sources.Develop new sources including dipole antenna arrays to be integrated witha programmable phase modulator to generate optically steerable far infraredradiation. These array sources combined with electro-optic imaging systemswill generate free space electromagnetic waves with soliton-like propertiesand applied to applications inTHz tomographic imaging.Existing work utilizing a THz impulse range for direct scatteringmeasurements will be extended to measure inverse scattering using multiplesources and detectors.This proposal seeks to open an underutilized region of the electromagneticspectrum to practical engineering applications with profound impact acrossa wide spectrum of disciplines. Educational Career Goals: The thesis of the educational component of thisproposal is that most students lack practical preparation for the demandingand cross-disciplinary tasks required in research. A unique photonicscurriculum, based on a model implemented by the PI on a small scale forthree years, will be developed in which students will be given practicaltechnical skills during the freshman or sophomore years. This curriculumwill provide training in the cross-disciplinary area of photonics andspecifically:Make use of practical, hands-on research training in an apprenticeshipmodel, similar to the teaching hospital of medicine at the freshman andsophomore level. Introduce students at the junior level to photonics research through aproblem based learning laboratory course. Provide independent research opportunities for senior students. Use effective pedagogies for education including scaffolding,collaborative learning, and communities of research practice to targetunder-represented students in Science, Mathematics, Engineering, andTechnology (SMET) to improve retention. Particular efforts will be made torecruit women for the program. Be based on a structure that is easily exportable to other programs orsubject areas, involve the use of representatives from industry andeducational consultants for assessment, and provide for the disseminationof the developed educational materials.***

9984896 chevilila一个利用光电脉冲在远红外（FIR）光谱区域进行成像和表征的研究项目将被整合到为本科生提供研究机会的课程中。研究方向：研究一种基于散射辐射相位相干探测的远红外光谱区宽带宽成像技术。应用包括生物医学成像、无损评估和非接触式半导体表征。这种新方法将解决空间分辨率、样品限制和化学成分制图问题。提出的技术是基于现有的产生特征良好的太赫兹辐射脉冲的能力。具体来说，该研究计划将：通过改进现有技术，将紧凑、可靠的太赫兹源的可用功率提高至少两个数量级，并在磁增强太赫兹源上开展合作。开发新的光源，包括偶极子天线阵列，与可编程相位调制器集成，以产生光学可操纵的远红外辐射。这些阵列源与电光成像系统相结合，将产生具有类似孤子性质的自由空间电磁波，并应用于太赫兹层析成像。利用太赫兹脉冲范围进行直接散射测量的现有工作将扩展到使用多源和探测器测量逆散射。本提案旨在打开电磁频谱未充分利用的区域，以实际工程应用，在广泛的学科范围内产生深远的影响。教育事业目标：本提案的教育部分的论点是，大多数学生缺乏对研究中要求苛刻和跨学科任务的实际准备。一个独特的光子学课程，将基于一个由PI实施了三年的小规模模型，在这个模型中，学生将在大一或大二期间获得实用的技术技能。本课程将提供跨学科光子学领域的培训，特别是：采用实习模式进行实践研究培训，类似于一年级和二年级的医学教学医院。通过以问题为基础的学习实验课程，向初中生介绍光子学研究。为高年级学生提供独立研究的机会。使用有效的教学方法，包括搭建、协作学习和研究实践社区，针对科学、数学、工程和技术（SMET）中代表性不足的学生，以提高保留率。将特别努力为该项目招募妇女。基于易于导出到其他项目或学科领域的结构，包括使用行业代表和教育顾问进行评估，并提供已开发的教育材料的传播