• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2018 Fiscal Year Final Research Report

Development of highly sensitive near-field terahertz sensors for the measurement of trace amount of solutions

Research Project

  • PDF
Project/Area Number 15K18053
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Electron device/Electronic equipment
Research InstitutionOsaka University

Principal Investigator

Serita Kazunori  大阪大学, レーザー科学研究所, 特任助教 (00748014)

Project Period (FY) 2015-04-01 – 2019-03-31
Keywordsテラヘルツ / 非線形光学 / マイクロ流路 / メタマテリアル / バイオセンシング
Outline of Final Research Achievements

We have proposed and developed a nonlinear optical crystal (NLOC)-based THz sensors for the ultra-trace measurements of solutions. The proposed sensors operate on the basis of near-field interaction between samples and a local emission of a point-like THz source that is generated in the process of optical rectification in the NLOC on a sub-wavelength scale. Using these sensors, we successfully detected femtomole order of solute in a less than 100 picolitter volume of the solutions. We also developed a reflection type THz near-field spectroscopic imaging system equipped with the THz sensors and succeeded in obtaining highly spatial resolution images of biological tissue samples.

Free Research Field

テラヘルツ波工学

Academic Significance and Societal Importance of the Research Achievements

生活習慣病などの初期診断を患者がほぼ無痛で行える波及効果の高い診断の提供が期待できる。また、タンパク質などの複雑な高次構造や機能性発現メカニズムに関する新規知見取得にもつながる可能性がある。非線形光学結晶も比較的安価でウエハ単位での入手が可能であることから衛生的な使い捨てタイプのチップとして利用可能である。本研究が、これまで困難であったバイオ・医療分野におけるTHzセンシング技術の産業応用発展と生体機能に関する新規知見取得に大いに貢献すると考えている。

URL: 

Published: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi