Terahertz Chemical Microscope - from Bench to Bedside and from Laboratory to Industry

太赫兹化学显微镜 - 从工作台到床边，从实验室到工业

• 批准号: RTI-2018-00510
• 负责人: Ozaki, Tsuneyuki
• 金额: $ 10.93万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=642244
• 关键词: Terahertz; Chemical; Microscope; Bench; Bedside

Photonics is an enabling technology that creates opportunities for innovation in downstream markets. Every so often, an unconventional but revolutionary technology provides a unique opportunity for quantum leaps in innovation. In this project, we propose to develop several new applications of a such novel technique for terahertz (THz) detection and imaging, named the Terahertz Chemical Microscope (TCM). The TCM uses THz radiation to monitor chemical reactions. When a near-infrared (IR) femtosecond laser irradiates a specially fabricated sensing plate of the TCM, electromagnetic pulses are generated, which are typically in the THz regime. In a TCM, a sensing film is fabricated on top of the sensing plate, which has high selectivity to the chemical to be detected. When chemicals attach to this sensing film, the intensity of the THz radiation changes. Therefore, changes in the chemical and electric potentials at the surface of the sensing film can be measured as changes in the amplitude of the THz pulse. The TCM has several advantages over conventional THz spectroscopy and imaging techniques, such as the ability to probe substances (such as aqueous solutions) that are highly absorptive or scattering in the THz range.

光子学是一项为下游市场创新创造机会的使能技术。有时，非常规但革命性的技术为创新的飞跃提供了独特的机会。在这个项目中，我们建议开发一种太赫兹（THz）检测和成像新技术的几种新应用，称为太赫兹化学显微镜（TCM）。 TCM 使用太赫兹辐射来监测化学反应。当近红外 (IR) 飞秒激光照射专门制造的 TCM 传感板时，会产生电磁脉冲，这些脉冲通常处于太赫兹范围内。在 TCM 中，传感膜制作在传感板的顶部，对待检测的化学物质具有高选择性。当化学物质附着在该传感膜上时，太赫兹辐射的强度就会发生变化。因此，传感薄膜表面化学势和电势的变化可以作为太赫兹脉冲幅度的变化来测量。与传统的太赫兹光谱和成像技术相比，TCM 具有多种优势，例如能够探测在太赫兹范围内具有高吸收或散射性的物质（例如水溶液）。