Waveguide-Based Emitters and Coherent Detectors of Broadband THz Pulses for a Compact THz Spectrometer

用于紧凑型太赫兹光谱仪的基于波导的宽带太赫兹脉冲发射器和相干探测器

• 批准号: 0442280
• 负责人: Ajay Nahata
• 金额: $ 10.88万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0442280&HistoricalAwards=false
• 关键词: Waveguide; Based; Emitters; Coherent; Detectors

Recent developments in the use of nonlinear optical processes for generation and detection of broadband THz pulses have created significant interest in the use of THz spectroscopy for a variety of civilian and military applications. The award from the Approaches to Combat Terrorism program (ACT) will be used to design, fabricate, and characterize novel waveguide-based emitters and detectors that allow for broadband operation over extended interaction lengths. This extended interaction is expected to allow for small form factor, low power ultrafast fiber lasers to replace current tabletop systems. The goal of the proposed research is to explore the use these waveguide devices to build a compact, portable, and robust THz time-domain spectroscopy system. The proposed devices employ a single mode dielectric waveguide embedded within a single mode THz waveguide. In addition to the training of students, the broader impact of this work is based on the development of fundamentally new technology. By creating the components necessary to make THz spectroscopic systems more readily available, we believe that this technology will be beneficial not only to the Intelligence Community, but also to a broader range of scientific communities.

在利用非线性光学过程产生和检测宽带太赫兹脉冲方面的最新进展引起了人们对在各种民用和军事应用中使用太赫兹光谱的极大兴趣。反恐途径计划(ACT)的这一奖项将用于设计、制造和表征新型的基于波导的发射器和探测器，这些发射器和探测器允许在更长的相互作用长度上进行宽带操作。这种扩展的相互作用有望允许小尺寸、低功率的超快光纤激光器取代目前的桌面系统。这项研究的目标是探索如何使用这些波导器件来构建紧凑、便携和健壮的太赫兹时域光谱系统。所提出的器件采用嵌入在单模THz波导内的单模介质波导。除了对学生的培训外，这项工作的更广泛影响是基于根本性新技术的发展。通过创造使太赫兹光谱系统更容易获得所需的组件，我们相信这项技术不仅将有益于情报界，而且将有益于更广泛的科学界。