| Project/Area Number |
16560154
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | TOKYO METROPOLITAN UNIVERSITY |
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Principal Investigator |
OTA Masahiro Tokyo Metropolitan University, Department of Mechanical Engineering, Professor, 都市教養学部理工学系, 教授 (80094259)
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| Co-Investigator(Kenkyū-buntansha) |
MURAKAMI Kazuhiko Tokyo Metropolitan University, Department of Mechanical Engineering, Research Associate, 都市教養学部理工学系, 助手 (00281692)
YOSHIDA Makoto Tokyo Metropolitan University, Department of Mechanical Engineering, Research Associate, 都市教養学部理工学系, 助手 (60336518)
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| Project Period (FY) |
2004 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2005: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2004: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | Fluid Dynamics / Laser trapping / Laser manipulation / Natural convection / レーザトラッピング / レーザマニピュレーション / 超微粒子 / マランゴニ対流 / ベナール対流 / DNA |
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| Research Abstract |
Applications of laser trapping techniques for solid particles and DNA are discussed on laser manipulation in water. The following points can be drawn. The laser trapping force evaluated by the geometric optical theory is in proportion to the ejected power from a laser generator and moreover dependent to non-dimensional efficiency for laser trapping. The laser trapping efficiencies for silica, glass and polythchlane solid particles are estimated by evaluating deflection angles of laser beam passing through the particles from medium. The laser trapping force by a pulsed laser beam with Q-switch is greater than the force by a continuous laser beam. The force for the manipulation is revealed to be dependent on a peak laser power but not dependent on an average laser power. By Galvano scanner, multi solid particles can be manipulated for transportation. The induced flows in water are revealed with laser irradiation.
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