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1995 Fiscal Year Final Research Report Summary

Development of novel refining method for ultra-purified materials

Research Project

Project/Area Number 06452338
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Metal making engineering
Research InstitutionTohoku University

Principal Investigator

SATO Shunichi  Tohoku Univ., IAMP,Asso. Prof., 素材工学研究所, 助教授 (30162431)

Co-Investigator(Kenkyū-buntansha) SHIBATA Hiroyuki  Tohoku Univ., IAMP,Res. Asso., 素材工学研究所, 助手 (50250824)
EMI Toshihiko  Tohoku Univ., IAMP,Prof., 素材工学研究所, 教授 (30250822)
Project Period (FY) 1994 – 1995
KeywordsLASER / PURIFICATION
Research Abstract

In this research, we tried to develop a momentum control method based on the interaction between the laser light and the atomic beam to establish a base of novel ultra-purification method of a wide variety of materials. To achieve this purpose, we made experimental equipment. This contains a laser source and a ultravacuum system. As a result, the pressure of 10^<-11> Torr was obtained. However, this value is the limitation of our measurement equipment and we believe that the pressure may be lower than this.
As a laser source, a compact and inexpensive semiconductor laser is suitable and desirable features for our experiments are as follows. 1. a spectral width as narrow as 100 kHz, 2. higher stability and 3. fast frequency scanning. As a first step, the output from the semiconductor laser is feedbacked by confocal Fabry-Perot interferometer to stabilize the laser frequency and to reduce its width. The laser frequency was widely scanned but not smooth due to the mode-hopping. By using a grating, smooth and wide range of scanning was achieved.
Moreover, we studied on a novel isotope separation on the basis of a light induced drift effect. In this research, the light induced drift was clearly observed in a larger reaction cell than those ever reported. It is thought that a highly efficient isotope separation is possible by our method.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 佐藤俊一: "金属微粒子の光トラッピング" 東北大学素材工学研究所彙報. 50. 9-15 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S. Sato: "Optical Trapping of Microscopic Particles" Current Topics in Quantum Electronics. 1. 41-51 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤俊一: "ミクロンオーダーの金微粒子の光トラッピング" 光学. 24. 40-43 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S. Sato: "Optical Trapping and Manipulation of Microscopic Particles and Biological Cells by Laser Beams" Optical and Quantum Electronics. 28. 1-16 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Sato: "Optical trapping of microscopic particles" Current Topics in Quantum Electronics. 1. 41-51 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Sato: "Optical trapping and manipulation of microscopic particles and biological cells by laser beams" Optical and Quantum Electronics. 28. 1-16 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1997-03-04  

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