| 光镊光阱力计算方法的研究 |
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| 引用本文： | 龙海峰,史锦珊.光镊光阱力计算方法的研究[J].光电子技术与信息,2005,18(4):14-17. |
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| 作者姓名： | 龙海峰 史锦珊 |
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| 作者单位： | 燕山大学仪器科学与工程系,河北,秦皇岛,066004 |
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| 基金项目： | 河北省自然科学基金（602163） |
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| 摘 要： | 介绍了一种光镊光阱力的计算方法，并对微粒在已知参数条件下所受的光阱力进行了仿真，深入分析了光阱力和与之相关的光束束腰半径、相对折射率、激光功率等系统参数的关系，对不同参数条件下的光阱力进行了讨论，从而验证了系统参数对光阱力的重要影响，此外还对电磁学模型的光阱力计算进行了阐述。
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| 关 键 词： | 光镊 光阱力 计算模型 数值仿真 |
| 文章编号： | 1006-1231(2005)04-0014-04 |
| 收稿时间： | 2004-09-13 |
| 修稿时间： | 2004年9月13日 |
Study on Calculation of Optical Trapping Force on Particle from Optical Tweezers |
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| LONG Hai-feng,SHI Jin-shan.Study on Calculation of Optical Trapping Force on Particle from Optical Tweezers[J].Optoelectronic Technology & Information,2005,18(4):14-17. |
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| Authors: | LONG Hai-feng SHI Jin-shan |
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| Abstract: | A method was presented about the calculation of optical trapping force from optical tweezers. Under given parameters, the simulation of the optical trapping force on particle was demonstrated, from which the relation was obtained between the optical trapping force and the systemic parameters including the radius of the beam waist, the relative refractive index and the laser power. From the changes of the optical trapping forces under different parameters, the important impacts of the parameters were validated. Furthermore, the calculation based on electromagnetic model was expounded. |
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| Keywords: | optical tweezers optical trapping force calculation model numerical simulation |
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