Fundamental study on development of the technique manipulating particles. small particles by laser beam

粒子操纵技术发展的基础研究。

• 批准号: 03045049
• 负责人: SHIMIZU Isao
• 金额: $ 3.46万
• 依托单位: Ibaraki College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03045049/
• 关键词: Laser manipulation; Radiation pressure; Trapped particles; Non-invasive elimination; Small particles; Radioisotope; Shape and size of particles; Diffraction pattern; Smoke particles; 光バリア; クリーンルーム; 液中粒子のマニピュレート; 光走査; 微粒子; レ-ザ光圧力; 粒子の排接触マニピュ

1.By the optical microscope composed with a telescope at eyepiece and, with a dark field object lens and with YAG laser beam and He-Ne laser beam, a new optical system has been developed to manipulate the small particles with determining the shape and size from the diffraction patterns of particles trapped in the liquid by YAG laser beam.2.It was clarified that the trapped particles of which diameter were over 1 mum, by radiation force, could be steadily manipulated by the scanned laser beam in the horizontal plane in the atmosphere.3.It was recognized that there were some possibility, which could remove and eliminate particles of which diameter was over 1 mum by horizontally scanning direct beam of Ar laser, and which could separate the particles in each shape or size with discriminating technique analyzing diffraction pattern from particles. A new manipulation technique for the large particles with determining the shape, size and species was proposed.4.To eliminate the particles, it was clarified that the Gaussian intensity distribution of the laser beam had to be definitely preserved in the laser barrier.5.In experiments, it was recognized that smoke particles of which diameter were under 0.1 mum were sent flying to the anti-progressive direction of incident laser beam at all position. A new technique has been proposed to eliminate or collect the small particles like as smoke particles or radioisotope particles suspended in the air.

1.利用光学显微镜，通过在目镜处设置望远镜，并在物镜处设置暗场物镜透镜，利用YAG激光束和He-Ne激光束，开发了一种新的光学系统，通过YAG激光束捕获的液体中颗粒的衍射图案来确定其形状和尺寸。2.澄清了被捕获的颗粒直径大于1 μ m，3.通过Ar激光水平扫描直接光束，可以去除和消除直径大于1 μ m的颗粒，并通过分析颗粒衍射图的鉴别技术，可以分离出各种形状或尺寸的颗粒。提出了一种确定大颗粒形状、大小和种类的操纵技术。4.为了消除大颗粒，必须保证激光束在激光屏障中的高斯光强分布。人们认识到，直径小于0.1 μ m的烟雾颗粒被送到反在所有位置入射激光束的前进方向。人们提出了一种新的技术来消除或收集悬浮在空气中的小颗粒，如烟雾颗粒或放射性同位素颗粒。

项目成果

Isao SHIMIZU: "Size sieving of Particles by radiation pressure" Proc.of International Congress on Optical Particle Sizing. vol.3. 379-381 (1993)

Isao SHIMIZU：“通过辐射压力对粒子进行尺寸筛分”，国际光学粒度测定大会论文集。

Isao SHIMIZU: "Determination of spatial distributions, behavior and velocity of particles for each shape and size" Journal of Aerosol Research, Japan. 9(1). 1-7 (1994)

Isao SHIMIZU：“确定每种形状和尺寸的颗粒的空间分布、行为和速度”，日本气溶胶研究杂志。

清水 勲: "レ-ザ-ビ-ムのバリアによるウエハ汚染防止" 第10回空気清浄とコンタミネ-ションコントロ-ル研究大会 講演論文集(空気清浄協会). 第10. 97-100 (1991)

Isao Shimizu：“通过激光束屏障防止晶圆污染”第十届空气净化和污染控制研究会议论文集（空气净化协会）第 10. 97-100 号（1991 年）。

K.F.Ren: "Radiation Pressure Force Exerced on a Particle Arbitrarily Located in a Gaussian Beam by Using the Generalized Lorenz-Mie theory" J.of Applied Physics. 21,24 (1992)

K.F.Ren：“利用广义洛伦兹-米理论对任意位于高斯光束中的粒子施加辐射压力”应用物理学杂志。

Isao SHIMIZU: "Investigation for simultaneous measurement of the size and position of spherical particles by a Multiplexed Matched Spatial Filter" Journal of Aerosol Research, Japan. 8(4). 307-314 (1993)

Isao SHIMIZU：“通过多重匹配空间滤波器同时测量球形颗粒的尺寸和位置的研究”，日本气溶胶研究杂志。