Research on X-Ray optics by quasi-crystal pattern

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K13397
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: General applied physics
• Research Institution: University of Tsukuba
• Principal Investigator: ITOH Masahide 筑波大学, 数理物質系, 教授 (30150874)
• Co-Investigator(Kenkyū-buntansha): 青木 貞雄 筑波大学, 数理物質系(名誉教授), 名誉教授 (50016804)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 電磁場解析 / 準結晶 / X線集光素子 / 回折限界

Outline of Final Research Achievements

As optical components in soft X-ray region, such as Wolter-type mirror and/or Freznel zone-plate lens, have a small numerical aperture, it is difficult to get a bright and high resolution images in microscope system. The purpose of this research is to develop the new focusing optical element to get X-ray spot of an atomic order using a quasicrystal pattern.
In this research we simulate the focusing effect of quasicrystal optical element with computer. We also made quasicrystal pattern by using a focused ion beam equipment and performed an irradiation experiment using a synchrotron facility. We clarified the principle of focusing effect of quasicrystal optical elements and showed the possibility to confine the X-ray upto the wavelength level in principle.

Free Research Field

応用光学