[1]周业鹏,任洪亮.球差对光镊中粒子轴向力的影响[J].华侨大学学报(自然科学版),2013,34(6):623-626.[doi:10.11830/ISSN.1000-5013.2013.06.0623]
 ZHOU Ye-peng,REN Hong-liang.Effect of Spherical Aberrations on the Axial Force of Particle in Optical Tweezers[J].Journal of Huaqiao University(Natural Science),2013,34(6):623-626.[doi:10.11830/ISSN.1000-5013.2013.06.0623]
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球差对光镊中粒子轴向力的影响()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第34卷
期数:
2013年第6期
页码:
623-626
栏目:
出版日期:
2013-11-20

文章信息/Info

Title:
Effect of Spherical Aberrations on the Axial Force of Particle in Optical Tweezers
文章编号:
1000-5013(2013)06-0623-04
作者:
周业鹏 任洪亮
华侨大学 信息科学与工程学院, 福建 厦门 361021
Author(s):
ZHOU Ye-peng REN Hong-liang
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
光镊 几何光学模型 捕获力 球差 稳定平衡点
Keywords:
optical tweezers ray optics model trapping force spherical aberrations stable equilibrium point
分类号:
TN249
DOI:
10.11830/ISSN.1000-5013.2013.06.0623
文献标志码:
A
摘要:
利用几何光学模型,取不同的粒子半径、数值孔径和探测深度,计算光镊中粒子受到的轴向力.从粒子在空间各位置的轴向力及其变化,分析球差对捕获效率的影响.计算结果表明:球差的存在,使得激光没有理想聚焦点,粒子在光镊中的稳定平衡点向负光轴方向位移,并降低了光镊捕获粒子的稳定性.
Abstract:
Axial force exerting on the particle in optical tweezers was calculated with different radii of particles, numerical apertures and detection depths in ray optics model. Through detecting the axial force and its changing versus the spatial positions, the effect of spherical aberrations on the efficiency of optical trapping was analyzed. The results of calculation show that, owing to the existing of spherical aberration, the ideal focus of the laser beam is disappear, the stable equilibrium point is moved along the negative optical axis direction, and the stability of optical trapping is reduced.

参考文献/References:

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[9] 鲍建华,龚錾,陈洪涛,等.粒子的轴向位移对光阱力学参数标定的影响[J].中国激光,2005,32(10):1421-1424.
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备注/Memo

备注/Memo:
收稿日期: 2012-10-28
通信作者: 任洪亮(1980-),男,讲师,主要从事光镊建设和应用,激光光束变换及应用的研究.E-mail:renhongliang@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(61178015); 福建省自然科学基金资助项目(2012J05120); 中央高校基本科研业务费专项资金资助项目(JB-ZR1146); 福建省厦门市科技计划项目(3502Z20113017)
更新日期/Last Update: 2013-11-20