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均匀球扭矩德拜级数分析

李仁先 韩香娥 帕尔哈提江·吐尔孙

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.
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.

均匀球扭矩德拜级数分析

详细信息
  • 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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