| 微粒在会聚高斯光束中的受力分析 |
| |
| 引用本文： | 朱占收,徐建波,王于刚,吴福燕.微粒在会聚高斯光束中的受力分析[J].徐州师范大学学报(自然科学版),2007,25(1):41-45. |
| |
| 作者姓名： | 朱占收 徐建波 王于刚 吴福燕 |
| |
| 作者单位： | 山东师范大学物理与电子科学学院,山东,济南,250014 |
| |
| 摘 要： | 以射线光学模型为基础,对会聚高斯激光束中微粒所受轴向力进行了计算.数值计算的结果表明,束腰越小捕获越稳定;相对折射率必须大于1并存在一个最佳相对折射率;激光波长、粒子半径以及激光功率也对捕获力有重要影响.数值计算和分析为搭建光镊仪器选取系统参数提供必要的理论依据.
|
| 关 键 词： | 激光微束 激光光阱 微操纵 梯度力 |
| 文章编号： | 23969309 |
| 修稿时间： | 10 30 2006 12:00AM |
Analysis for the Force Exerted on a Micro-particle in the Focused Gaussian Laser Beam |
| |
| ZHU Zhan-shou,XU Jian-bo,WANG Yu-gang,WU Fu-yan.Analysis for the Force Exerted on a Micro-particle in the Focused Gaussian Laser Beam[J].Journal of Xuzhou Normal University(Natural Science Edition),2007,25(1):41-45. |
| |
| Authors: | ZHU Zhan-shou XU Jian-bo WANG Yu-gang WU Fu-yan |
| |
| Institution: | College of Physics and Electronic Sciences, Shandong Normal University, Jinan, Shandong, 250014, China |
| |
| Abstract: | The axial force exerted on a micro-particle in the focused Gaussian laser beam is calculated by using the Ray-Optic Model.The calculated results show that the smaller the radius of the beam waist is,the stabler the trapping of the micro-particle is.And by analysis,we find that the relative refractive index must be greater than 1.There is an optimum relative refractive index.The wave length,the size of micro-particle and the laser power have important effects on the axial trapping force. |
| |
| Keywords: | micro-beam laser laser trap micromanipulation gradient force |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
