| 单光镊光阱力分析 |
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| 引用本文： | 赵海军,朱占收,徐建波.单光镊光阱力分析[J].云南师范大学学报(自然科学版),2006,26(1):38-41. |
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| 作者姓名： | 赵海军 朱占收 徐建波 |
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| 作者单位： | 山东师范大学,物理与电子科学学院,山东,济南,250014 |
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| 基金项目： | 教育部科学技术研究项目 |
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| 摘 要： | 在几何光学近似下，利用光线追踪法分析了激光微束作用于微粒的作用力，数值计算中考虑了激光微束的具体结构对光阱力的影响。分析表明：相对折射率和激光束腰对光阱力有重要影响，另外激光波长和微粒大小对光阱力也有一定影响。
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| 关 键 词： | 光镊 激光微束 梯度力 捕获 |
| 文章编号： | 1007-9793(2006)01-0038-04 |
| 收稿时间： | 2005-05-17 |
| 修稿时间： | 2005年5月17日 |
An Analysis for Optical Trapping Force in Single Beam Optical Tweezers |
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| ZHAO Hai-jun,ZHU Zhan-shou,XU Jian-bo.An Analysis for Optical Trapping Force in Single Beam Optical Tweezers[J].Journal of Yunnan Normal University (Natural Sciences Edition),2006,26(1):38-41. |
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| Authors: | ZHAO Hai-jun ZHU Zhan-shou XU Jian-bo |
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| Institution: | Physics and Electron College, Shandong Normal University, Jinan 250014,China |
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| Abstract: | By means of single beam tracing method, the force of micro--beam exerting to microscopic particles is analyzed in the condition of geometrical optics approximation. The effects of laser micro--beam on optical trapping force are introduced. Numerical results show that not only the rela- tive refraction index has an important effect on optical trapping force, but also the optical waist has one, too. Furthermore, the wavelength of laser and the size of microscopic particles has a lesser effect on optical trapping force, respectively. |
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| Keywords: | optical tweezers laser micro-beam gradient force capture |
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