Fabrication of terahertz antenna for THz spectroscopy applications

太赫兹 (THz) 电磁波的频率为 10^12 Hz 量级，波长为 100 um 量级。用于材料成像/传感和表征的太赫兹光谱在过去十年中受到了广泛关注。研究表明，许多材料，包括有机材料、炸药、药物化合物和生物制剂，在太赫兹频率上具有明显的特征。因此，它在制药工业、食品工业、有机发光二极管、安全、航空航天、石油工业、医学成像、医学以及高数据速率通信等领域具有潜在的应用。太赫兹辐射的独特特性以及使能技术的最新进展，为太赫兹技术为许多关键工业问题提供独特的解决方案创造了机会。TeTechS Inc. (www.tetechs.com) 是一家太赫兹技术解决方案公司，致力于开发用于工业和科学应用的太赫兹传感器和成像系统。 TeTechS Inc. 目前正在向全球工业和学术客户提供各种领先的太赫兹产品，从光电导天线芯片到太赫兹光谱系统。本项目的目标是制造：（1）垂直结构的光电导芯片，与普通平面叉指光电导天线相比，性能有所提高； （2）光电导天线，可以在电信波长（1550 nm）下工作，并且可以与光纤耦合，这将减少紧凑型太赫兹光谱系统的尺寸； (3)甚高频太赫兹天线。

Terahertz (THz) electromagnetic waves have frequencies of order 10^12 Hz and wavelengths order 100 um. Terahertz spectroscopy for material imaging/sensing and characterization has received a great deal of attention over the past decade. It has been shown that many materials including organic materials, explosives, pharmaceutical compounds and biological agents have distinct signatures in the terahertz frequencies. It thus has potential applications in areas such as the pharmaceutical industry, food industry, organic light emitting diode, security, aerospace, oil industry, medical imaging, medicine, as well as high-data-rate communications. The distinct characteristics of terahertz radiation, along with recent advances in the enabling technologies, have created the opportunity for the terahertz technology to provide unique solutions to many critical industrial problems.TeTechS Inc. (www.tetechs.com) is a terahertz technology solution company committed to developing terahertz sensor and imaging systems for industrial and scientific applications. TeTechS Inc. is currently offering a variety of leading-edge terahertz products ranging from photo-conductive antenna chips to terahertz spectroscopy systems, to industry and academic customers worldwide. The current project aims to fabricate: (1) photoconductive chips with vertical structure that has improved performance compared to the common planar interdigitated photo-conductive antenna; (2) photo-conductive antennas that can work at telecom wavelength (1550 nm) and can be coupled to fiber optics, which would reduce the size for compact terahertz spectroscopic systems; and (3) very high frequency terahertz antennas.