C324 Study of micro-underwater shock waves induced by Q-switched Ho : YAG laser focusing
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概要
- 論文の詳細を見る
Paper reports a quantitative study of underwater shock waves and cavity bubbles induced by direct irradiation of pulse laser beam. Energy source was a Q-switched Ho : YAG laser. The laser beam was focused and transmitted through an optical fiber. Double exposure holographic interferometry was used for flow visualization. The whole sequences of underwater shock waves generation and propagation were observed. The laser interaction produced micro plasma. which drove spherical shock wave in water and followed by formation of a vapor cavity. By shaping the optical fiber's surface to a hyperboloidal contour, an effective laser focusing and stronger underwater shock waves were achieved. The micro shock waves produced by this method have potential to be applied for precise medical procedures.
- 日本流体力学会の論文
- 2002-07-23
著者
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Hosseini S.
Institute Of Fluid Science Tohoku University
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Hirano T.
School of Medicine, Tohoku University
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Hosseini S.
Shock Wave Research Center. Institute of Fluid Science. Tohoku University
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Hirano T.
Department of Neurosurgery. School of Medicine. Tohoku University
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Takayama K.
Shock Wave Research Center. Institute of Fluid Science. Tohoku University
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Hosseini S.
Shock Wave Research Center Institute Of Fluid Science. Tohoku University
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Hosseini S.
Shock Wave Research Center Institute Of Fluid Science Tohoku University
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Hirano T.
Department of Mechanical Systems Engineering, Takushoku University
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