THz/sub-mm Wave Technology: Design and Characterization Tools for Wave guides and Devices

在太赫兹(THz)频率范围内(300 GHz至3 THz)的源和探测器的进步，使人们能够进入这一以前未知的区域，即THz间隙。太赫兹技术在成像、通信、化学和生物检测方面正变得非常有吸引力。研究人员正在开始推进基础知识和技术，这将在超宽带连接、光谱分析、成像以及化学和生物材料的检测和传感方面开辟许多新的能力。反过来，这些进步的潜在应用也引起了从通信、安全到健康科学等许多行业的兴趣。为实现这一目标，拟议的总干事提案旨在围绕以下三个主题为知识库作出贡献： *通过将光子晶体(PC)技术与高功率电子束相结合，设计和制造紧凑、灵活的高功率太赫兹辐射源。 *开发用于制造集成太赫兹电路和系统的与CMOS兼容的平台技术。该平台将允许在同一衬底上集成介质和金属波导，并由积木结构组成，允许快速设计和制作能够控制和操纵信号极化、相位、频率等电路的原型。 *设计和制造亚毫米和太赫兹转换连接器和探头电路，能够在与测量仪器和其他I/O端口的接口处控制和操纵波的极化、相位、频率等。目前，表征技术，在这一频率范围内还处于萌芽状态。

Advancement of sources and detectors in the terahertz (THz) frequency range, between 300GHz to 3 THz, has allowed access to this previously uncharted region, known as the THz Gap. THz technology is becoming very attractive for imaging, communications, chemical and biological detection. Researchers are beginning to advance the basic knowledge and techniques that are opening up many new capabilities in ultra broad-band connectivity, spectroscopy, imaging, and detection and sensing of chemical and biological materials. In turn, the potential applications of these advancements have generated interests from many industries ranging from communication, security to health science. Towards this goal, the proposed DG proposal aims to contribute to the knowledge base along the following three themes: *Design and fabricate compact flexible high power THz radiation source by integrating photonic crystal (PC) technology with high power electron beam. *Develop a CMOS compatible platform technology for the fabrication of integrated terahertz circuit and system. The platform will allow the integration of both dielectric and metallic wave guides on the same substrate and consists of building block structures that allow rapid design and prototyping of circuits which are capable of controlling and manipulating the signal polarization, phase, frequency, etc. * Design and fabrication of sub-mm and THz transition connector and probe circuits that is capable of controlling and manipulating polarization, phase, frequency, etc. of the waves at the interfaces with measurement instruments and other I/O ports. At present, characterization techniques, in this frequency regime is in an embryonic state.