Thz detection using stokes-mueller polarimetry (phase 1)

使用 stokes-mueller 偏振法进行太赫兹检测（第 1 阶段）

• 批准号: 505829-2017
• 负责人: Ozaki, Tsuneyuki
• 金额: $ 9.11万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 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=618899
• 关键词: Thz; detection; using; stokes; mueller

The current proposal aims to improve and thus increase the value of a new intellectual property developed at the INRS for characterizing terahertz (THz) radiation, based on Stokes-Mueller polarimetry. THz sources and detectors have many important potential applications in the areas of spectroscopy, detection, and security. Various methods have been proposed and demonstrated in order to measure the spatial and temporal profile of the THz electric field. Among these, the electro-optic (EO) sampling method is widely used for THz time-domain spectroscopy (THz-TDS), due to the relatively straightforward physics involved and its wide bandwidth. However, the EO method suffers from several drawbacks. Our THz detection technique using Stokes-Mueller formalism has several advantages over the conventional EO-sampling method. First, by fully measuring the Stokes parameters of the probe beam, our technique solves the problem of over-rotation, thus allowing measurements with potentially unlimited dynamic range. Second, our technique also allows the measurement of the THz polarization state. Third, our technique can provide both temporal and spatial distribution of the THz electric field with a single measurement. Further, stability is greatly increased by eliminating any mechanically moving element.In this Idea to Innovation project, we propose to develop a working prototype of an equipment based on our invention, which could perform 2D measurement of both the THz electric field and polarization, with very large dynamic range. The successful implementation of this project could result in a unique equipment for THz detection, providing the Canadian manufacturing sector with a highly competitive product in the rapidly growing THz market.

当前的提案旨在改善基于Stokes-Mueller Polarimetry的Terahertz（THZ）辐射来提高INRS开发的新知识产权的价值。 THZ来源和检测器在光谱，检测和安全性领域具有许多重要的潜在应用。为了测量THZ电场的空间和时间轮廓，已经提出和证明了各种方法。其中，由于涉及相对直接的物理及其较宽的带宽，电磁（EO）采样方法被广泛用于THZ时域光谱法（THZ-TDS）。但是，EO方法遭受了几个缺点。我们使用Stokes-Mueller形式主义的THZ检测技术比常规的EO采样方法具有多个优点。首先，通过完全测量探针光束的Stokes参数，我们的技术解决了过度旋转的问题，从而允许使用潜在的无限动态范围进行测量。其次，我们的技术还允许测量THZ极化状态。第三，我们的技术可以通过单个测量来提供THZ电场的时间和空间分布。此外，通过消除任何机械移动的元素，可以大大提高稳定性。在创新项目的这一想法中，我们建议基于我们的发明开发设备的工作原型，该原型可以对THZ电场和极化进行2D测量，并具有很大的动态范围。该项目的成功实施可能会导致独特的THZ检测设备，从而为加拿大制造业在快速增长的THZ市场中提供了竞争激烈的产品。