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2021 Fiscal Year Final Research Report

Development of ultra-sensitive measurement method for terahertz absolute power by real-time drift compensation

Research Project

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Project/Area Number 19K04418
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21030:Measurement engineering-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Iida Hitoshi  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (40392584)

Co-Investigator(Kenkyū-buntansha) 木下 基  国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 (00415671)
Project Period (FY) 2019-04-01 – 2022-03-31
Keywordsテラヘルツ計測
Outline of Final Research Achievements

In this research, we have realized a drift reduction technology for high-sensitivity absolute power measurement that accelerates the application development of terahertz waves. In order to identify the cause of drift, we have developed a technique to analyze the frequency component in the terahertz region. Furthermore, we have developed a precision calibration technique for terahertz attenuation, which is indispensable for stable control of small power, and demonstrated the basic technique for real-time drift compensation. As a result, we have succeeded in developing an important technique for speeding up terahertz power measurement and evaluating its uncertainty.

Free Research Field

計測工学

Academic Significance and Societal Importance of the Research Achievements

テラヘルツ波を安心安全に利用するためには、出力されるパワーを高精度に測定する技術の開発が期待されていた。特に、微弱パワーの精密測定には課題が多く、技術革新が進んでこなかった。そのブレークスルーとして、センサのドリフト抑制技術を開発し、微弱パワー測定の不確かさ改善を実現したことによって、テラヘルツ波応用製品の信頼性や性能向上に貢献することができるため、今後の産業応用を加速することができる。

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Published: 2023-01-30  

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