High-sensitivity detection of stable isotopes by laser and photonic technology

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03756
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Geochemistry/Cosmochemistry
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: SAKAI Saburo 国立研究開発法人海洋研究開発機構, 生物地球化学研究分野, 技術研究員 (90359175)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: レーザー分光 / 中赤外 / 安定同位体

Outline of Final Research Achievements

The purpose of this study is to develop a mid-infrared laser spectrometer with “mid-infrared “optical fiber technology for detection of isotopologues. The laser oscillation and detection test with a mid-infrared quantum cascade laser, a mid-infrared fiber, a mid-infrared collimator, a small cell, and a mid-infrared detector showed that the laser oscillation-detection result through the mid-infrared fiber and collimators was good, however a fringe increase due to a small cell was found. As the results, the fiber-based laser spectroscopic system, without using the traditional optical lens system, could be possible even in the mid-infrared region.

Free Research Field

同位体地球化学