Development of analysis method of X-ray circular dichroism onmagnetic resonance excitation using a high power terahertz radiation in high magnetic field

高磁场下高功率太赫兹辐射磁共振激发X射线圆二色性分析方法的发展

• 批准号: 23656236
• 负责人: IDEHARA Toshitaka
• 金额: $ 2.5万
• 依托单位: University of Fukui
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656236/
• 关键词: テラヘルツ光; X線円二色法; 磁気共鳴; ジャイロトロン; 国際研究者交流、フランス; ESR計測; YAGレーザー; 2次高調波動作

Measurement with high time resolution on excitation process of magnetic resonance phenomenon in THz frequency region is important for analysis of basic behavior of material in high magnetic field. In this research subject, a high power THz radiation generated by a stable THz radiation source- gyrotron is irradiated on the sample installed in the high magnetic field and the behavior of the sample is analyzed by an X-ray circular dichroism with high time resolution. Obtained results are as follows, 1) Using a THz radiation source-Gyrotron FU II developed in University of Fukui and an ESR device installed in the European Synchrotron Radiation Facility (ESRF) in Grunoble, France, we have carried out successfully the operation test of the measurement device with high time resolution for analysis of excitation process of magnetic resonance by use of an X-ray circular dichroism. We are intending to advance the application of the developed device to material science in the world. In addition, we will develop the device further to higher frequency region and combined quantum beam technology between an X-ray and a THz radiation beam.

在太赫兹频段对磁共振现象激发过程进行高时间分辨率测量，对于分析材料在强磁场中的基本行为具有重要意义。在本研究课题中，将稳定的太赫兹辐射源-回旋管产生的高功率太赫兹辐射照射到安装在强磁场中的样品上，并用高时间分辨率的X射线圆二色谱分析样品的行为。1)利用福井大学研制的太赫兹辐射源--回旋管FU-II和安装在法国格勒诺布尔的欧洲同步辐射装置(ESRF)上的ESR装置，成功地进行了利用X射线圆二色谱分析磁共振激发过程的高时间分辨率测量装置的运行试验。我们打算推动该装置在世界材料科学中的应用。此外，我们还将把该装置进一步发展到更高的频率范围，以及X射线和THz辐射束之间的联合量子束技术。

项目成果

Application of Continuously Frequency-Tunable 0.4 THz Gyrotron to Dynamic Nuclear Polarization for 600 MHz Solid-State NMR

• DOI: 10.1007/s10762-012-9890-1
• 发表时间: 2012-07-01
• 期刊: JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
• 影响因子: 2.9
• 作者: Matsuki, Yoh;Ueda, Keisuke;Fujiwara, Toshimichi
• 通讯作者: Fujiwara, Toshimichi

Development of sub-terahertz gyrotrons for novel applications

• DOI: 10.1109/irmmw-thz.2011.6105098
• 发表时间: 2011-12
• 期刊: 2011 International Conference on Infrared, Millimeter, and Terahertz Waves
• 作者: S. Sabchevski;T. Idehara

X-ray Detected Magnetic Resonance at sub-THz Frequency Using a High Power Gyrotron Source, J

使用高功率回旋管源 J 的亚太赫兹频率 X 射线检测磁共振

• 发表时间: 2012
• 期刊: Infrared, Millimeter and Terahertz Waves
• 作者: A. Rogalev;J. Goulon;T;Idehara;I.Ogawa
• 通讯作者: I.Ogawa

High power terahertz technologies Opened by High Power Radiation Sources-Gyrotron FU CW Series

高功率辐射源开启的高功率太赫兹技术-Gyrotron FU CW系列

• 发表时间: 2011
• 作者: T. Idehara;Torii;Y.Fujii;I. Ogawa;T.Saito; T.Fujiwara;T.Suehara and R.Dupree
• 通讯作者: T.Suehara and R.Dupree

High power THz technologies opened by high power radiation sources - Gyrotron FU CW Series,

高功率辐射源开启的高功率太赫兹技术——Gyrotron FU CW系列，

• 发表时间: 2012
• 期刊: Proc. of 8 th International Workshop on Strong Microwaves and Terahertz Waves
• 作者: T. Idehara;F. Horii;Y. Fujii;I. Ogawa;T. Saito;T. Fujiwara;T. Suehara;R. Dupree,
• 通讯作者: R. Dupree,