Research on the technique manipulating small objects by laser beam with discriminating shape and size simultaneously and instantaneously

本研究结果分为以下三个领域。1)发展了同时、瞬时判别各种形状、大小的小颗粒空间分布的技术。2)利用激光束的辐射力操纵小粒子技术的发展。3)利用激光束识别颗粒形状和大小的小颗粒操纵技术的发展。(1)建立了多路匹配空间滤波（Multiplexed matching Spatial Filter， MMSF）方法，该方法能够同时实时地判别和显示各种形状和大小的粒子的空间分布。观察到的粒子直径为几微米或几十微米。(2)研制了专用光学系统，利用显微光学系统结合中继透镜系统和暗场光学系统，对不同形状和大小的粒子所产生的弱衍射图进行分辨。(3)在此基础上，为了方便、快速地制备MMSF，开发了光塑板的材料和光塑板显影设备。该技术增强了匹配空间滤波方法的功能，使MMSF易于推广到一般人的使用。(4)从摄像机拍摄的颗粒图像中，研究开发一种能够方便、同步、实时地识别颗粒形状和大小的光学系统。阐明了开发能够实时识别形状和尺寸的光学系统的可能性。(1)利用激光束的辐射压力无创筛分几百纳米大小的颗粒，开辟了新的技术领域。(2)实验发现，直径在几微米以上的颗粒可以向激光束照射方向移动，亚微米颗粒可以向激光束反照射方向移动。(1)将粒子形状判别技术与激光操纵粒子技术相结合，进行了自动分离各种形状和大小粒子的光学系统的研究。(2)本研究发展了一种能够测量不同形状和大小的粒子的行为的技术。少

The results of this research are classified three fields as follows. 1) Development of the technique discriminating the spatial distributions of small particles in each shape and size simultaneously and instantaneously. 2) Development of the technique manipulating small particles by radiation force of laser beam. 3) Development of the technique manipulating small particles with discriminating shape and size ofparticles by laser beam.1).(1) The Multiplexed Matched Spatial Filter (MMSF) method has been established, it can discriminate and display the spatial distributions of particles in each shape and size simultaneously and in real time. The observed particles are several micron or several ten micron meter in diameter. (2) The special optical system has been developed to take clearly each weak diffraction pattern generated from each particle having different shape and size, using microscopic optical system combined with relay lens system and dark field optical system, for discriminatin … More g each one particle from diffraction pattern. (3) On the above mentioned, in order to make easily and rapidly the MMSF,the material of photoplastic plate and the equipment of developing photoplastic plate have been developed. The technique enhanced the facilities for the Matched Spatial Filtering method, it makes easily extend the general person's use of MMSF.(4) The research on developing the optical system having the ability discriminating the shape and size of particles easily, simultaneously and in real time, from the images of particles taken by video camera, has been done. The possibility has been clarified for developing the optical system which can discriminate shape and size in real time.2).(1) New technological field has been cultivated through the development of the technique which can sieve noninvasively the size of particle in the difference of several handred nano meter in size by radiation pressure of laster beam. (2) It was experimentally recognized that the particles having the diameter over several micron in size could be moved for the direction of irradiation of laser beam and the submicron particles could be moved for the direction of anti-irradiation of laser beam.3).(1) The research developing the optical system automatically discreting particles in each shape and size has been done, with combinig the technique discriminating the shape of particles and the technique manipulating the particles by laser beam. (2) The technique being able to measure the behavior for each particle in the different shape and size has been developed in this research. Less