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径向偏振光束的聚焦整形及应用研究 被引量：1

Theory and Application of focus shaping of radially polarized beams
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摘要 针对径向偏振光束进行聚焦整形的问题,通过调整入射光束的参数、透镜的数值孔径以及衍射光学元件的结构,对调控光束聚焦场的强度分布进行了理论分析,提出了一种利用衍射光学元件对径向偏振光束进行聚焦整形的方法。结合实际应用的需求,设计了2种衍射光学元件,实现了超小光斑及长焦深和光链结构的聚焦场分布。数值模拟结果证实了设计的合理性。 Based on the focus shaping of radially polarized beams, the focused field intensity distributions of incident beams are theoretically analyzed by modulating the parameters of incident beams,numerieal aperture （NA） of the objective lens and structure parameters of diffractive optical elements （DOEs） , A method of focus shaping for radially polarized beams using is proposed. Two kinds of DOEs are designed aecording to the practical requirements,and an ultrasmall spot with a long depth of focus and an optical chain are presented respectively. The simulation results verify the validity of the theoretical analysis.
作者 周哲海 张晓青
机构地区 北京信息科技大学光电信息与通信工程学院
出处 《北京信息科技大学学报（自然科学版）》 2011年第3期44-48,共5页 Journal of Beijing Information Science and Technology University
基金 国家973重大基础研究项目(2007CB935303) 国家自然科学基金青年基金项目(60908015) 北京市教委科技发展计划项目(201110772005)
关键词 聚焦整形 衍射光学元件 径向偏振光束 长焦深 光学捕获 focus shaping diffractive optical elements radially polarized beams long depth offocus optical trapping
分类号 O436 [机械工程—光学工程]
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参考文献8

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同被引文献11

  • 1M P MacDonald, G C Spalding, K Dholakia. Microfluidic sorting in an optical lattice [J]. Nature, 2003, 426(69651): 421-424.
  • 2Yukiko Shimizu, Hiroyuki Sasada. Novel optical trap of atoms with a doughnut beam [J]. Phys Rev Lett, 1997, 78(25): 4713-4716.
  • 3Qiwen Zhan. Trapping metallic Rayleigh particles with radial polarization [J]. Opt Express, 2004, 12(15): 3377-3382.
  • 4Hikaru Kawauchi, Kazuhiro Yonezawa, Yuichi Kozawa, et al.. Calculation of optical trapping forces on a dielectric sphere in the ray optics regime produced by a radially polarized laser beam [J]. Opt Lett, 2007, 32(13): 1839-1841.
  • 5Wan-Chin Kim, No-Cheol Park, Yong-Joong Yoon, et al.. Investigation of near-field imaging characteristics of radial polarization for application to optical data storage [J]. Opt Rev, 2007, 14(4): 236-242.
  • 6Gary J Brouhard, Henry T Schek, Alan J Hunt. Advanced optical tweezers for the study of cellular and molecular biomechanics [J].IEEE Transactions on Biomedical Engineering, 2003, 50(1): 121-125.
  • 7W Chen, W Zhen. Three-dimensional focus shaping with cylindrical vector beams [J]. Opt Commun, 2006, 265(2): 411-417.
  • 8Y Q Zhao, Q Zhan, Y L Zhang, et al.. Creation of a three-dimensional optical chain for controllable particle delivery [J]. Opt Lett, 2005, 30(8): 848-850.
  • 9Y Q Zhao, Q Zhan, Y P Li. Design of DOE for beam shaping with highly NA focused cylindrical vector beam [C]. SPIE, 2005, 5636: 56-65.
  • 10Qinwen Zhan, James R Leger. Focus shaping using cylindrical vector beams [J]. Opt Express, 2002, 10(7): 324-331.

引证文献1

北京信息科技大学学报（自然科学版）
2011年 第3期

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