Non-destructive testing of materials by time-domain terahertz (THz) imaging

通过时域太赫兹 (THz) 成像对材料进行无损检测

• 批准号: RGPIN-2016-05020
• 负责人: Blanchard, François
• 金额: $ 2.26万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 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=637494
• 关键词: Non; destructive; testing; materials; time

Terahertz (THz) waves cover the electromagnetic region from 100 GHz to 15 THz, thus bridging the gap between microwaves and infrared (IR) light. For long time, this frequency range has been unexplored due to a lack of THz source, the so-called ‘THz frequency gap’. Today’s brightness of THz light opens up the door for novel applications ranging from spectroscopic imaging to ultra-high speed short-range telecommunication devices. To directly impact the industry, however, simple generation and detection schemes are still awaiting to be discovering that will enable turnkey applications (e.g. for efficient, non-destructive evaluations at THz frequency). The anticipate approach is to combine different technologies, such as electronics and plasmonics, for realizing novel THz systems that offer orders of magnitude improvements in performance at lower cost than actual systems. This will enable THz radiation to be used to obtain important physical data that are not accessible using X-ray or infrared radiation.

太赫兹（THz）波覆盖从100 GHz到15 THz的电磁区域，从而桥接微波和红外（IR）光之间的差距。长期以来，由于缺乏太赫兹源，这一频率范围一直未被探索，即所谓的“太赫兹频率间隙”。今天太赫兹光的亮度为从光谱成像到超高速短距离电信设备的新应用打开了大门。然而，为了直接影响该行业，简单的生成和检测方案仍在等待发现，这将使交钥匙应用成为可能（例如，在THz频率下进行有效的无损评估）。预期的方法是将联合收割机不同的技术，如电子学和等离子体激元学，用于实现新的THz系统，该系统以比实际系统更低的成本提供性能的数量级改进。这将使太赫兹辐射能够用于获得使用X射线或红外辐射无法获得的重要物理数据。