## 留言板

 引用本文: 李仁先, 韩香娥, 帕尔哈提江·吐尔孙. 均匀球扭矩德拜级数分析[J]. 中国光学（中英文）, 2011, 4(1): 53-59.
LI Ren-xian, HAN Xiang-e, PARHATJAN T. Debye series analysis of radiation torque exerted on a sphere[J]. Chinese Optics, 2011, 4(1): 53-59.
 Citation: LI Ren-xian, HAN Xiang-e, PARHATJAN T. Debye series analysis of radiation torque exerted on a sphere[J]. Chinese Optics, 2011, 4(1): 53-59.

• 中图分类号: O436

## Debye series analysis of radiation torque exerted on a sphere

• 摘要: 基于会聚光束所产生的扭矩来实现对小粒子的操纵已在物理学、生物学等领域得到了广泛的应用。为了分离出单个散射过程对扭矩的贡献,给出扭矩物理机理的解释,本文引入德拜级数分析了高斯波束对均匀球粒子所产生的扭矩。计算表明,当德拜项p从1取到一个足够大的值后,德拜级数计算结果与广义米氏理论结果吻合。文中重点分析了单阶p散射过程对横向扭矩的贡献,结果表明:当线极化光束入射时,p=1~5散射过程都可以产生横向扭矩,但扭矩的方向不同;当圆极化光束入射时,p=-1和0对应的扭矩远大于p=1~4对应的扭矩,且p=0过程产生与其他p过程相反方向的扭矩。

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##### 出版历程
• 收稿日期:  2010-08-12
• 修回日期:  2010-10-13
• 刊出日期:  2011-02-25

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