SPring-8 Users Community (SPRUC)

Research Group:

Infrared Spectroscopy with Synchrotron Radiation Source

  Hidekazu Okamura
  Tokushima University, 2-1 Minamijyousanjima-cho,Tokushima 770-8506,JAPAN
  Telephone: +81-88-656-9444
  ho (at) tokushima-u.ac.jp

Research Area:




Overview of Research Group, Goals and Purposes:

Our research group "Infrared spectroscopy with synchrotron radiation source" have the following aims:

  1. Promotion and further development of infrared synchrotron radiation research.
  2. Collaborative research and study activities with communities using other infrared and terahertz sources.
  3. Draw a future perspective regarding the infrared synchrotron research
  4. The infrared (IR) beamline BL43IR at SPring-8 covers a spectral range between the far and near infrared (between 100 and 10000 cm-1). In this spectral range, the synchrotron radiation (SR) has about 2 orders of magnitude greater brilliance than the conventional IR source. Taking advantage of this high brilliance, IR microscopic studies and IR studies under extreme conditions such as high pressure and high magnetic field are actively carried out. The application fields include solid state physics, chemistry, biology, materials science, archeology, and medical science. In particular, during the 4th term of our research group, we held a symposium titled "Infrared spectromicroscopy under high magnetic fields and future of infrared synchrotron research" (Fukuoka, 2019-1-12), including invited speakers from abroad. In this symposium, new applications using the newly upgraded magneto-microscopy station of BL43IR were discussed. In the proposed 5th term of this research group, we will further develop the research activities and will promote the IR SR research for the prospective users in a wide range of fields.

    At the next generation SR facilities worldwide, the use of IR SR will have some difficulties due to the limited extraction angle of SR from the electron storage ring. We discussed this topic in the above-mentioned symposium. In addition, we have discussed it in the WIRMS conference (International Workshop on Infrared Microscopy and Spectroscopy with Accelerator Based Sources). During the 5th term, in 2021, we will host the next WIRMS in Japan, and will continue the discussion along the same line.