Development of high-sensitive near-infrared magneto-optical fiber probe

2015 Fiscal Year Final Research Report

• Project/Area Number: 25620112
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Analytical chemistry
• Research Institution: Osaka University
• Principal Investigator: WATARAI Hitoshi 大阪大学, ナノサイエンスデザイン教育研究センター, 教授 (30091771)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: Sagnac 効果 / 磁性ナノ粒子 / 磁気複屈折 / 磁気線二色性 / 磁気旋光 / 磁気プローブ

Outline of Final Research Achievements

The present study was done to develop the measurement system of magnetic optical rotation using optical fiber. The following results were obtained:1)A new instrument to measure the magnetic optical rotation of liquid and solid samples with high sensitivity was constructed by the application of the principle of Sagnac interference effect. 2)The magnetic birefringence of magnetic nanoparticles in liquids was measured by the measurement of the Sagnac effectdue to the application of magnetic field. 3)By the use of the magnetic Sagnac instrument, it was found that the magnetic linear dichroism of the sample could be measured and it could be applied to the magnetic nanoparticles. 4) By using a 850 nm laser, polarizatin maintaining optical fibers and a fiber polarizer, the instrument to measure the magnetic Sagnac effect was constructed.

Free Research Field

分析化学