Three-dimensional control of terahertz and infrared electric fields and nanoscale analysis of materials with hierarchical topology

2023 Fiscal Year Final Research Report

• Project/Area Number: 21H01746
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 28020:Nanostructural physics-related
• Research Institution: Chuo University
• Principal Investigator: Kawano Yukio 中央大学, 理工学部, 教授 (90334250)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: テラヘルツ光 / 赤外光

Outline of Final Research Achievements

Terahertz (THz) and infrared (IR) measurements have become an effective tool for studying various materials. However, since the spatial resolution of optical imaging is mainly limited to the wavelength, imaging technologies with THz and IR light, which have longer wavelengths in light, have the problem of low spatial resolution. In this study, we have overcome this problem by fabricating unique light focusing devices, which have led to the elucidation of microscopic THz and IR optical properties of materials.

Free Research Field

テラヘルツ・光工学

Academic Significance and Societal Importance of the Research Achievements

光による計測は主に可視光や近赤外光を中心として発展してきたため、より波長の長い領域の光学イメージングにおいて波長による制限を超える空間分解能が得られたことは、今後の光計測に拡張をもたらす意義がある。さらに本研究では、光の振動方向を変えながら画像化することが可能となったため、特徴的な構造を持つ物質材料の分析に有効である。