Optical Trappings of ThO_2 and UO_2 Particles Using Radiation Pressure of a Visible Laser Light

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Optical trappings of ThO<SUB>2</SUB> and UO<SUB>2</SUB> particles have been first demonstrated in water using the radiation pressure of a TEM<SUB>00</SUB>-mode He-Ne laser beam of λ=633nm. It was observed that a ThO<SUB>2</SUB> particle was success- fully trapped three-dimensionally in the focus region and transferred by moving the focus. On the other hand, for a UO<SUB>2</SUB> particle of which a refractive index and an extinction coefficient are relatively large in the visible region, only two-dimensional trapping was observed when the beam focus was located near the bottom of the particle. One of the main difficulties in the optical trapping of nuclear fuel particles is attributed to their relatively large absorption coefficients in the visible region. Computational studies on three-dimensional op- tical trapping performances of absorbing particles were, therefore, perfomed with a simulation code based on geometrical optics. The present calculation can well predict the experimental results on the optical trapping characteristics for ThO<SUB>2</SUB> and UO<SUB>2</SUB> particles.

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  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 33(12), p.956-963, 1996-12-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002076022
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4109560
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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