Laser beam drive of micro motor

微电机激光束驱动

• 批准号: 03650351
• 负责人: KAWATA Satoshi
• 金额: $ 1.73万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650351/
• 关键词: MICRO MOTOR; LASER TRAPPING; RADIATION PRESSURE; LASER; EVANESCENT FIELD; 光導波路; レーザートラッピング; レーザー; マイクロモ-タ; レ-ザ・トラッピング; レ-ザ; ユバネッセント波

The objective of this research is to realize the miro-motor whose size is in the order of micron, by using radiation-pressure generated by laser beam as the driving force. The motor (linear, rotational, or levitational) is driven by laser beam, without using mechanical or electrical means. In the research, the experiments on the driving of mirco particles was conducted. The driving force by the radiation pressure was also theoretically analyzed.The experiment of three-dimensional laser-beam manipulation of the particle was carried out. This particle correspondes to the moving part in the micro-motor. Effects of the material, size, shape and mass of the particle were measured. The driving method with evanescent field was proposed. It was found out that the driving using evanescent field was promising way. Optimal conditions for this driving were evaluated experimentally.The driving force made from evanescent field was examined theoretically by using a physical model. By comparing the results of the numerical simulations with the experimental results, validness of the model was examined. Through the simulation results, the optimal condition to effectively obtain the maximum driving force was derived.Utilizing laser trapping techniques to assemble micro-motor was also considered, and the feasibility was investigated experimentally.

本研究的目的是利用激光束产生的辐射压作为驱动力，实现微米量级的微型电机。电机（线性、旋转或悬浮）由激光束驱动，不使用机械或电气手段。研究中进行了微小粒子的驱动实验。并对辐射压的驱动力进行了理论分析。进行了粒子三维激光操纵实验。该粒子对应于微电机中的运动部件。测量了颗粒的材料、尺寸、形状和质量的影响。提出了倏逝场驱动方法。人们发现利用倏逝场驱动是一种很有前途的方法。通过实验评估了这种驱动的最佳条件。利用物理模型从理论上检验了渐逝场产生的驱动力。通过将数值模拟结果与实验结果进行比较，检验了模型的有效性。通过仿真结果，推导了有效获得最大驱动力的最佳条件。还考虑了利用激光捕获技术组装微电机，并进行了实验研究其可行性。

项目成果

R.Arimoto,C.Saloma,T.Tanaka,and S.Kawata: "“Image Proterties of Axicon in a Scanning Optical System"" Applied Optics.

R. Arimoto、C. Saloma、T. Tanaka 和 S. Kawata：““扫描光学系统中轴棱镜的图像特性””应用光学。

河田 聡,中村 収: "レ-ザCT顕微鏡ー2次元からの3次元回復" システム/制御/情報. 35. 610-616 (1991)

Satoshi Kawata、Osamu Nakamura：“激光 CT 显微镜 - 从 2D 恢复 3D”系统/控制/信息。35. 610-616 (1991)

T. Nakano and S. Kawata: "Numerical analysis of the near-field diffraction pattern of a small aperture" Journal of Modern Optics. Vol.39. 645-661 (1992)

T. Nakano 和 S. Kawata：“小孔径近场衍射图案的数值分析”《现代光学杂志》。

Satoshi Kawata,and Tadao Sugiura: "“Movement of MicrometerーSized Particles in Evanescent Field of a Laser Beam"" Optics Letters.

Satoshi Kawata 和 Tadao Sugiura：“激光束渐逝场中微米级粒子的运动”《光学快报》。

河田 聡: "ニアフィールド顕微鏡の光学" 光学. 21. 766-779 (1992)

Satoshi Kawata：“近场显微镜光学” 21. 766-779 (1992)。